Characters introduced in the original Goosebumps series:
Amanda and Josh Benson
The very first protagonists of the series. Amanda and her younger brother Josh move to the town of Dark Falls after their father inherits a house from a dead uncle. While Josh is adamant about refusing to go along with the plans to move, Amanda tries to keep an open mind about the situation, until she learns her new home has a terrible secret.
- Annoying Younger Sibling: Josh, but only slightly. He's said to be a tad impatient and spoiled but in the story it's generally toned down and in the end they get along okay.
- Badass Normal: Josh, at one point, attempts to bash Mr. Dawes' head in when he realizes that he's not alive.
- Early Installment Weirdness: It's hard to imagine that Amanda and Josh are protagonists in a Goosebumps book due to the fact that neither of them have any of the Flanderization traits prominent in the other protagonists, especially those with younger siblings. Amanda isn't a Straw Loser who is The Un-Favourite to her Annoying Younger Sibling, nor is Josh a raging Spoiled Brat doted on by their parents. This makes more sense when considering that they were the very first protagonists and actually set the mold for the characters to come.
- Foolish Sibling, Responsible Sibling: Josh is the foolish to Amanda's responsible. Josh is more self-absorbed and less willing to go along with their family's move, while Amanda, who has her own reservations about moving, recognizes that arguing about it is just going to cause tension. Though once the truth comes out, Josh becomes pretty understandable.
- Kid Hero: It falls upon both Benson siblings to rescue their parents after they are taken captive by the Dark Falls residents, and in doing so, they end up killing most of the townspeople... except Mr. Dawes.
- Nice Girl: Amanda, she's certainly one of the more likable protagonists. The only mean thing she does is scare her brother, but that's only because he previously scared the crap out of her with a prank of his own.
- Psychic Dreams for Everyone: Her first night in Dark Falls, Amanda has a nightmare about her family as living skeletons devouring human bones. Which is almost exactly what would've happened to the Bensons if the people of Dark Falls had succeeded in draining their blood.
- Spoiled Brat: Josh. Amanda and their parents acknowledge that he's slightly spoiled, but unlike the other spoiled siblings seen in the later books, Mr. and Mrs. Benson do little to encourage it.
- Straw Loser: Averted. Neither Benson sibling come close to the levels of Straw Loser some of the other protagonists share. Amanda mentions that she can be kind of klutzy when it comes to playing softball, but it's not something Played for Laughs or Played for Drama. Indeed, they are probably the most heroic protagonists until Deep Trouble.
Dark Falls Residents
The undead inhabitants of a remote town who lure new residents there to eat them.
- Affably Evil: You wouldn't be able to tell their true nature until it's too late.
- Anti-Villain: They feast on living beings to sustain their town's existence, but seemingly hold no ill-will towards them. Some, like Karen, are quite remorseful for their abominable lifestyle.
- Almighty Janitor: Compton Dawes, Dark Falls' mild mannered real estate agent, is not only a bloodsucking mutant, but he's also the most responsible for keeping the town alive.
- Big Bad: Again, Compton Dawes. He's the one most responsible for luring new victims in his role as Estate agent, and thus keeping the town active for so long. It's also possible his survival at the end of Dead House would have been the premise of the cancelled Goosebumps Gold sequel.
- Bitch in Sheep's Clothing: They seem nice at first, but the children of Dark Falls enjoy messing with Amanda and Josh for no reason other than they feel like it, and once their true nature is revealed, they drop all pretenses of being nice in order to satisfy their hunger.
- Creepy Child: Karen and the rest of the Dark Falls children. They especially like to hide in Amanda and Josh' rooms while they sleep and fool around with their belongings. When they're not doing that, they like to randomly manifest in front of Amanda while she's alone and make her believe she's going crazy when they disappear. Josh mentions that there were a couple of boys in his room who were "mean" but Josh refuses to go into detail over what they did to him.
- Family-Unfriendly Death: When most undead monsters are destroyed by light, it's portrayed as simply crumbling to dust or burning to ash. Not these guys; they graphically rot and fall apart, including loving descriptions of their faces melting, skulls shattering and eyeballs falling out. Averted in the TV series, where they just kind of evaporate.
- Fate Worse than Death: Little Karen Somerset (and presumably other residents) thinks this way of her undead existence.
- A Fête Worse Than Death: Their "welcoming ceremony" at the town Podium. This of course leads to a Fate Worse than Death.
- Gaslighting: The children of Dark Falls make it a habit of screwing with Amanda and Josh. They'll randomly pop up in front of Amanda while she's alone, then disappear. They also like to mess with the siblings' belongings, and have tried to do things to them while they're asleep.
- Haunted House: Inverted. They inhabit every other home except the titular "dead house" where the living family stays.
- Karma Houdini: Compton Dawes survives the destruction of the other townspeople, and goes on to feed on more families.
- Our Vampires Are Different: They drink blood and are destroyed by sunlight like vampires, but bare more of a resemblance to ghosts or zombies.
- Starter Villain: The entire Goosebumps franchise began with these guys.
- Town with a Dark Secret: Dark Falls. With a name like that, it's no surprise.
- Undead Child: Ones that are a weird mix between vampires, zombies, and ghosts.
- Used to Be a Sweet Kid: Most of the children, probably.
- The Virus: In their town, they'll welcome you as one of them-literally.
- Weakened by the Light: Bright light will destroy them. Unusually for The Undead, it doesn't have to be sunlight. Any sufficiently intense light will do.
Margaret and Casey Brewer
Two siblings having to deal with their father becoming increasingly distant from them, and eventually learning there's something even more distressing going on.
- Action Heroine: Margaret proves to be the rather intrepid protagonist as she investigates the goings-on in the Creepy Basement even after Dr. Brewer's angry threats. Taken up a notch in the TV series, where she is the one to kill the plant-clone of her father, spraying it with weed killer.
- Adult Fear: Margaret dealing with the slow realization that one of the people she loved and trusted most in the world is becoming a slowly unhinged antagonist.
- Badass Normal: Margaret when she uses her quick thinking to figure out who her real father is, especially in the TV episode where she's the one to finish him off.
- Early Installment Weirdness: Both avoid many of the more Flanderized traits of the later protagonists, with Margaret's general Badass Normal persona and despite her (understandably) melancholic disposition, she proves to be much more of a poor soul than a Straw Loser. Casey's Annoying Younger Sibling traits are also greatly toned down.
- Embarrassing Nickname: Margaret hated her Father's nicknames of "Fatso" (she's slender) and "Princess", but misses them greatly as they were a sign of now-absent closeness. Also provides the key to finding out which Dr. Brewer is her real father.
- Fish out of Water: Have had trouble getting used to their new California home from their native Michigan, though their father's reclusive behavior hasn't helped.
- Foolish Sibling, Responsible Sibling: A milder example than most, with Margaret the responsible to Casey's foolish.
- Luke, I Am Your Father: At the very end, a backyard sunflower claims to be Margaret's real father. In the show, a lot of flowers claim this.
- Promotion to Parent: With their mom away for most of the book and Dr Brewer being confined to the basement, Margaret has become a surrogate parent of sorts to Casey.
Doctor Michael Brewer
A botanist/father who spent hours in his basement trying to create new forms of plant life. These experiments caused him some... unsettling changes.
- Affectionate Nickname: He calls Margaret "princess" and "fatso" (the latter ironically due to how skinny she is). Him calling her princess is partially what hints Margaret as to who her real father is.
- Anti-Villain: Brewer himself is a type V. Grotesque as his experiments are, he's simply a good man who got caught up in playing god and wound up neglecting his family.
- The Atoner: By the end of the book, he gives up his horrible experiments and tries hard to make up to his family. Or so it seems.
- Bad Powers, Good People: He's a well-meaning father/botanist with a talent for growing human-plant abominations. Better be careful introducing him to your first dates, Margaret and Casey...
- Body Horror: His mutation into a plant creature. And let's not even talk about the things he grows in the basement...
- Creepy Basement: His lab. The book is called "Stay Out Of the Basement" for a reason.
- Cloning Blues: His clone held him hostage in a basement for weeks and tried to take over his life.
- Dude, Where's My Respect?: To his boss for firing him.
- Evilutionary Biologist: The real Brewer even states that while he knew what he's doing is wrong, he just couldn't stop, because creating life is just too damn exciting.
- Even Evil Has Loved Ones: He loves his kids, Margaret and Casey, hence why he created his clones to be with them.
- Four Eyes, Zero Soul: Subverted. He's not really evil, just stubborn and willing to ignore certain morals.
- From Nobody to Nightmare: Played with. He doesn't become a super-villain like most instances of this trope, but his reckless experiments turn him from a simple botanist to a Mad Scientist who endangers everyone around him.
- Genetic Memory: His clone went rogue because of this-since he was a near perfect copy of the original, he had all of that man's memories.
- Good Parents: Unlike his clone, he's very compassionate and close to his family and is extremely grateful to his kids for saving his life.
- Humanity Ensues: What made him think turning plants into humans was a good idea?
- Impossible Genius: An average middle-class man who, through some process that isn't elaborated on, was able to grow living, breathing human-plant organisms in his basement. How he could afford the equipment even necessary for such an experiment, or whether he has some kind of supernatural gift, is anyone's guess.
- LEGO Genetics: Apparently, combining plant and human DNA only took him a few weeks.
- Mad Scientist: His freakish experiments with plant matter are what causes the book's conflict.
- Planimal: His entire time in the basement was spent creating these. Unlike most examples, these aren't cute or friendly in the slightest.
- The Workaholic: Spends hours in his basement trying to perfect his experiments and ends up sorely regretting it.
Dr. Brewer's plant clone
One of Dr. Brewer's plants that he accidentally brought to life
- Adaptational Badass: The plant clone in the book is a clumsy and pitiful freak doing a very bad job fitting in with his human family. The one in the 2015 game is a full-blown plant monster with a nasty temper who can turn his appendages into crushing vines. Weed killer doesn't even destroy him like in the TV episode.
- Adaptational Villainy: Downplayed in the tv adaptation. While the clone still overpowered Dr Brewer and stole his identity in the book, there is never anything else especially ulterior about his motives. He just seems to want to continue the doctors research himself and live life as a human. The tv adaptation fleshes him out more, revealing that he wants to create plant clones of all of humanity to Kill and Replace them. He also is even more hostile and abrasive to Margaret and Casey then he was in the book.
- Affably Evil: He's a pretty nice guy in human form aside from the minor detail of knocking out and tying up Dr. Brewer and Mr. Martinez for days. He does try to be a good father to Margaret and Casey and even helps a neighbor install his sink.
- Anti-Villain: He just wanted a chance to be human and even tries to be a good one.
- Family-Unfriendly Death: He's chopped in half with an axe by the original Dr. Brewer, in full view of the rest of the family.
- Genetic Memory: He went rogue because of this-since he was a near perfect copy of the original Dr. Brewer, he had all of that man's memories.
- I Just Want to Be Normal: He wanted to be human and experience a normal life outside of being a plant.
- Kill and Replace: He was presumably planning this, both for him and the rest of his family.
- Nice Hat: An LA Dodgers cap, which covers the leaves on his scalp.
- Obliviously Evil: According to Dr. Brewer in the tv adaptation anyway, who claims it just wanted to dominate its environment like most plants naturally do.
- Out-of-Character Alert: His cold and indifferent treatment of Dr. Brewers family while impersonating him quickly alarms Margaret and Casey, as their pop is usually very close with them.
- Plant Person: One accidentally created when Dr. Brewer cut his hand and some of his blood mixed with a plant.
- Turned Against Their Masters: He imprisoned his creator and stole his identity.
- Woobie, Destroyer of Worlds: Plant Clone!Brewer may be one of the most creepy and intimidating villains in the series, but he really just wants to be human and gain a family. This even extends to his short appearance in the 2015 video game, where he only attacks you if he thinks you're threatening him, and starts whimpering pitifully once you spray him with weed killer.
Max and Lefty Thomspon
The protagonists of Let's Get Invisible, brothers whose discovery of a secret mirror in his attic with one special power leads to exciting yet ultimately terrifying consequences.
- Annoying Younger Sibling: Lefty to Max, as he is hyper and loves threatening him, as well as becoming invisible after promising not to.
- Do Not Do This Cool Thing: An in-universe example as after showing off the mirror's magical powers, Max tries to warn his clearly eager friends not to mess around with something so mysterious and possibly dangerous.
- Evil Doppelgänger: Max's reflection who tries to replace him in the real world and Lefty's reflection actually succeeds in doing so.
- Fate Worse than Death: Finding out at the very end that his brother has been permanently replaced with his reflection and since the mirror is likely irreversibly destroyed, his actual brother is trapped in the mirror-world forever... hard not to see that as permanently traumatizing.
- Foolish Sibling, Responsible Sibling: Max is much more socially calm, level-headed and well-behaved than his far brattier and more excitable brother Lefty.
- Four-Temperament Ensemble: Erin & Lefty (Sanguine), Max (Phlegmatic), April (Melancholic) and Zach (Choleric).
- Mirror Match: Max has a literal showdown with his own reflection after he's pulled into the mirror in lieu of staying invisible too long.
- Nobody Touches the Hair: Max takes immense pride in the grooming of his hair and is a near-Berserk Button whenever anybody tries to mess with it or pretend any strand is out of place.
- Only Sane Man: Max tends to play this towards his more eccentric friends and brother.
- Puppy Love: For a change of pace in the series Max's crush on his close gal pal Erin is made rather blatant (if never openly declared), and while it's unknown how much it's reciprocated it's more flirtatious than most of the series main Boy/Girl pairings and show some signs of (adolescent-style) UST. His crush is also made into a major plot point as seeing her appear disappointed at him goads him on to keep letting everyone use the mirror against his better judgement.
- The Smart Guy: Max is one of the more mature and inquisitive protagonists in the entire series, perhaps leading to his early skepticism about using the mirror's invisibility power and him instantly picking up on his brother and friend's odd behavior after their prolonged periods of invisibility.
- Spoiled Brat: Subverted with Lefty, as his parents do little to encourage his bratty behavior even if they seem powerless to stop it.
- Toxic Friend Influence: All of Max's friends pressure him to continue using the mirror, but mostly Zack, who tries to turn invisibility into a competition and makes fun of Max when he refuses.
A mysterious mirror found in the protagonists' attic. Whoever turns on the lamp at the top becomes invisible, but too much use may have some unforeseen side effects.
- And I Must Scream: If you stay invisible too long, your reflection takes your place in the real world while you stay trapped in the mirror for eternity. It is more than implied that this is Lefty's ultimate fate.
- Evil Doppelgänger: The reflections of the people who use the mirror. Their goal is to switch places and then force others into the mirror world.
- Magic Mirror: A special variant of one that can make people invisible.
- Sealed Evil in a Can: The mirror is hidden behind a false wall in the attic, and rightfully so.
See Night of the Living Dummy Saga page.
- "Life is just a phase I'm going through."
The titular character of The Girl Who Cried Monster, Lucy has a fascination for monster stories, but her fascination turns to fear when she learns the local librarian actually is a monster and no one will believe her.
Has become something of an Ensemble Dark Horse due to a certain scene from the book and TV show.
- Big Sister Bully: She loves freaking out her little brother with her monster stories. Though why her brother would be afraid of monsters (since both he and Lucy are monsters) is anyone's guess.
- Cassandra Truth: Pretty much the whole book.
- Crying Wolf: She's annoyed pretty much everyone around her with all her monster stories so of course they won't believe her when she learns Mr. Mortman actually is one. However, when she gets her friend to believe her and tell her parents, they change their mind... and then they eat him. It makes sense in context.
- Curtains Match the Window: Has black hair and black eyes, along with her brother. Probably a trait of being a monster.
- Cute Monster Girl: She's a cute young girl who seems to like monsters a bit too much. Well, she also is a monster herself; she hasn't gotten her fangs yet, but they're coming.
- Deadpan Snarker: Enjoys snarking at her parents. At one point her mother worries about this "monster phase" she's going through, and Lucy retorts "Life is just a phase I'm going through." Well, being a monster is her life, so...
- Determinator: After witnessing Mr. Mortman transform, she takes it upon herself to expose him no matter how many people don't believe her and how dangerous it'll get. Though her reasons for doing so are much different from what one would expect: it's so that her parents can eat Mr. Mortman and ensure that the Dark family are the only monsters in town.
- Nightmare Fetishist: Her love for monster tales. Makes sense; she herself is a monster.
- Non-Malicious Monster: The only reason her parents kill Mr. Mortman is to protect their family's identity as monsters, which seems more justified when you remember he tried to kill Lucy to protect his secret as well. Other than that, they're not hostile. There's a specific moment in the TV show where it looks like her parents are considering eating her best friend for dessert, and she seems very horrified before her dad asks if said friend will join them for pie. Quite a family, eh?
- Walking Spoiler: Clearly there's more to Lucy than meets the eye, if you can tell by how much is spoilered out. Her true motives? Trying to make sure that she and her family are the only monsters in their town by having her parents devour any rival monsters. Aww, how sweet! She's not evil though, so it's okay.
- "Keep running, little one. I love fast food!"
The librarian of Timberland Falls. Although he looks like a normal, albeit slightly overweight, human, Mortman is actually a monster who eats insects, reptiles, fish... and sometimes people.
- Adaptational Nice Guy: He's a fair bit calmer in the mobile game Goosebumps Horror Town and even manages to talk things out with Mrs. Dark.
- Adaptational Villainy: He acts more antagonistically in the TV episode, chasing after Lucy the first time she sees his monster form. He also supplies the above quote.
- Affably Evil: He's relatively polite and friendly in his human form, even going to the trouble of returning Lucy's bag when she leaves it in the library.
- Anti-Villain: Although he tries to kill Lucy (and probably anyone else who finds out his secret), he's still mostly a monster who wants to live his life peacefully.
- Bald of Evil: He's described as having male-pattern baldness, and appears this way in the TV episode as well.
- Big Bad: Of The Girl Who Cried Monster.
- Body Horror: His transformation into his monster form. For example, his eyes stick out of his head on stalks.
- Child Eater: Although he mostly eats creepy crawlies, he shows more than a little interest in eating Lucy, especially in the TV episode.
- Four Eyes, Zero Soul: Although the actual book never mentions him wearing glasses, the cover art shows him with a pair, and the TV episode followed its example.
- Horror Hunger: Eats a whole lot of really nasty things.
- I'm a Humanitarian: Although he seems to prefer eating turtles and flies, Mortman will eat a human (such as snooping kids).
- Named by the Adaptation: Goosebumps Horror Town reveals that his first name is Eugene.
- Tuckerization: The above mentioned name is most likely a reference to Eugune Lipinski, who played Mortman in the TV episode.
- Voluntary Shapeshifting: He can turn into a monster seemingly at will.
- Weaksauce Weakness: He can be stopped in his tracks by knocking the card catalog into disarray. This appears to be a nod to the famed obsessive-compulsive behavior of vampires re: seeds. Lucy chalks it up to his being a librarian.
- Would Hurt a Child: He chases Lucy in an attempt to harm her to get her to keep quiet about his secret.
The protagonist of Welcome to Camp Nightmare, who finds that Camp Nightmoon is slowly turning into a nightmare when his parents enroll him in it.
- All There in the Manual: His last name is revealed in Goosebumps presents.
- Human Aliens: Turns out to be this in the twist along with every other character, being an alien while possessing several human-like characteristics.
- Kid Hero: He manages to keep a cool head and take action during the horrific events that occur throughout the book. Towards the end he points his gun at Uncle Al and shoots after refusing to hunt down Dawn and Dori.
- The Leader: He often takes charge in his cabin due to being the most level-headed camper.
- Nice Guy: He's kind, brave and selfless throughout the book. What ultimately causes him to pass the test so he can join his parents in their expedition.
- Only Sane Man: He plays this role in his cabin, being more level-headed amongst his more boisterous or skittish bunkmates.
- Tomato Surprise: It turns out the camp is a government testing lab so Billy's parents could decide if they could take him with them on their expedition... to earth. Yeah, they're actually aliens.
The negligent camp director of Camp Nightmoon.
- Badass Mustache: His first scene has him scare off a bunch of leopard like creatures threatening the campers.
- Big Bad: The director of Camp Nightmoon, and thus the one most responsible for the horrible events that occur on its grounds.
- Bitch in Sheep's Clothing: Acts nice at first, but shows his nastier side as time goes on, including being unconcerned about campers disappearing and is more worried about losing a canoe. The "bitch" part turns out to be an act.
- Drill Sergeant Nasty: He doesn't even hire a nurse at his camp because he doesn't believe in "pampering" his boys.
- Hidden Heart of Gold: He seems like a horribly negligent and immoral camp director, but it turn out he was putting on an act as a test for Billy.
- Human Aliens: Revealed to be this in the twist (along with everyone else at the camp).
- Father to His Men: Zigzagged. He seems pretty warm and friendly before revealing a much more dark and cruel side. In the end, though, he was doing it all for the good of his campers.
- Punch-Clock Villain: Acts like a jerk for most of the book. Turns out it's all an act to test Billy, and he shows his true nicer colors once he passes the last part.
- Secret Test of Character: The entire plot is revealed to be this for Billy.
- "Scooby-Doo" Hoax: He, along with all the other campers, invented a monster that's said to live in the forbidden bunk.
- Skewed Priorities: When he learns that two of his campers have drowned, he's upset about losing his best canoe.
- Training from Hell: The camp doesn't have a nurse because "Uncle Al doesn't want to coddle you guys".
- Walking Spoiler: Very much so. Explaining the truth about him would give away the end of the book.
- Well-Intentioned Extremist: He's actually a nice guy who wants to ensure his campers' success, it's just that his methods are extremely dangerous and unethical.
- Ascended Extra: She appears in the 2015 movie as Hannah Stine. R.L. released her from her book and had her play the role of his daughter because he was lonely.
- Barred from the Afterlife: She could only proceed to the afterlife with her family after saving Danny from the fire.
- Cute Ghost Girl: What she turns out to be.
- Dead All Along: It's revealed Hannah's a ghost after she passes through Danny's body, and that she died along with her entire family because of a campfire she hadn't probably doused in their backyard one evening.
- Did You Just Flip Off Cthulhu?: The TV episode has the Shadow-spirit try to manipulate her into forgetting Danny. When Hannah realizes this, she outright screams in his (lack of) face what a selfish, hypocritical monster he is.
- Died Happily Ever After: At the end of the book. She has to leave Danny, but also gets to join her family.
- Disappears into Light: She does that to save Danny.
- Earn Your Happy Ending: Twice! In the original story, Hannah moves on to the afterlife with her family after she saves Danny from dying. In the movie, she's able to keep living outside the books even when the other monsters are trapped again.
- Fiery Redhead: In the TV adaptation.
- Friendly Ghost: Very much so, considering she came back all to prevent Danny from dying in an accident like she did.
- Glamour Failure: Happens to her when she discovers that she is a ghost.
- Intangibility: She used that power when she met her demise.
- Invisible to Normals: Happens in the TV adaption.
- It's All My Fault: The fire that destroyed her home and killed her family started because she hadn't completely doused the campfire she set up with her brothers in the backyard.
- Tomato in the Mirror: She suspects Danny is a ghost only to find out that she is one and returned to save Danny.
- Unfinished Business: She died in a fire in her backyard and came back to save Danny from a similar fate. Afterwards, she joins the rest of her family in the afterlife.
- Walking Spoiler: Twice over. Not only is she the titular ghost in the title, but she's also R.L. Stine's daughter in the movie.
Shadow Spirit/Danny Anderson
This mysterious, eerie entity begins following Hannah Fairchild around after she befriends Danny Anderson. Apparently invisible to everyone but Hannah, and obsessed with keeping her away from Danny, he has a deadly agenda that involves both children.
- Ascended Extra: He's not much more than a side-antagonist in the book, but he does and says a lot more in the TV episode.
- Big Bad: For The Ghost Next Door. It backfires massively on him.
- Darth Vader Clone: A dark clad supernatural figure with a troubled childhood who was horrifically burned in the past and is trying to tempt the hero to his side? The TV episode even has him utter Vader's most infamous line.
- Evil Former Friend: A sociopathic supernatural version of Danny from one possible future.
- Evil Mentor: The TV episode has him try to tutor Hannah to embrace her undead condition like he has. It doesn't make a lick of difference.
- Face of an Angel, Mind of a Demon: Has the face of a normal-looking pre-teen boy under his hood, despite supposedly burning to death in his past life.
- Freudian Excuse: Danny is implied to have a miserable home life, struggling to take care of his deaf mother while his father is completely absent. Other than Hannah, who wasn't in Shadow!Danny's timeline, his only friends are street kids who peer pressure him into dangerous vandalism. His horrific death in a fire is what convinces him to give up on life altogether.
- Future Me Scares Me: He is little Danny Anderson from a timeline where he burned to death without Hannah to save him.
- The Grim Reaper: May not be a reaper himself, but he's definitely intended as a stand in for Death. This is taken to the extreme in the 1990s trading card art, where he's depicted as looking exactly like the Grim Reaper.
- Hypocrite: Consistently rants that Danny is destined to die, but in the TV episode he tries to kill the kid himself to speed up the process. Needless to say, Hannah falls for none of it.
- Nice Job Fixing It, Villain!: And how! He's obsessed with making sure his human self dies, but his constant harassment of Hannah only draws her further to saving him.
- Plot-Irrelevant Villain: As a few have pointed out, the Shadow-Danny has little to do with the main plot, which is focused more on Hannah and Danny's friendship. He's just there to build up a creepy atmosphere and provide an additional obstacle for the heroine to overcome. The TV adaption fixes this by turning him into a completely separate entity that wants Danny dead so he can take his place in the living world and stop being a shadow.
- Red Herring: Double subverted. Hannah initially believes he's Danny in ghost form. He isn't... at least not the Danny she's come to know.
- Walking Spoiler: One of those rare entries where both main characters qualify, for different reasons.
- You Can't Fight Fate: Constantly preaches this to Hannah to ensure his past self's demise, especially in the show. Ironically, he falls victim to this himself when his actions only encourage her to go through with saving Danny.
- "I love beautiful music, Jerry. And music sounds so much better, so much more perfect, when human mistakes don't get in the way."
The main villain of Piano Lessons Can Be Murder. An inventor and robotics expert obsessed with creating beautiful music. He secretly operates a music school via posing as the janitor, to find people with beautiful hands which he then chops off for the sake of converting them into machines because he can't create hands from scratch.
- And I Must Scream: His fate at the end of "Piano Lessons can be Murder" is spending eternity perfecting the piano in the basement of the music school.
- Asshole Victim: One of the most depraved villains in the entire franchise, and his final fate is implied to be equally horrible.
- Big Bad: Of Piano Lessons Can Be Murder.
- Brilliant, but Lazy: He's tried creating robotic hands from scratch but he kept failing, so he decided the easier thing to do would be to kill people, steal their hands, and then install wiring inside them so they can play music. In the TV show, it seems as a child he took piano lessons but was too lazy to actually practice. His teacher mentions he was a very clever child, but also very lazy.
- Cool and Unusual Punishment: In the TV show, his former teacher is punishing him by making him practice the piano for eternity.
- The Dog Bites Back: Dragged to his death by the hands of the students he harvested and enslaved. School reunions can be a pain, eh, Toggle?
- The Dog Was the Mastermind: At first it seems Dr. Shreek is a madman with an unhealthy obsession regarding music and hands, but then it turns out he was a robot the whole time... and Toggle is the aforementioned madman with the unhealthy obsession.
- Evil Old Folks: At least in the TV series. He gives off some rather pedophilic vibes in the book, which are not toned down for the live-action adaptation.
- Evil Teacher: His "greatest creation", Dr. Shreek.
- Helping Hands: Creates these out of the bodies of his victims. They do end up being helpful, but certainly not in the way he wanted.
- Humans Are the Real Monsters: It really says something that in a series full of ghosts, aliens, and other bizarre monstrosities, this man, an average human engineer, manages to stand out as one of its most murderously heinous villains.
- Knight of Cerebus: He's a serial killer with one of the highest body counts in the entire series. Kid friendly scares, amirite?
- The Man Behind the Man: He created Dr. Shreek and made him the figurehead for the music school so he could stay behind the scenes and continue killing people.
- Obliviously Evil: He sees nothing wrong with his vile deeds, so much so that he thinks Jerry should be volunteering for his experiment. This doesn't really make him that pitiful or tragic, and only emphasizes how callously apathetic he is to the lives of his victims.
- Never Found the Body: In the book, the ghosts of his victims reclaim their hands, then carry him away to an unknown fate.
- Non-Action Big Bad: He has fantastic technological skill, but as the ghosts of his victims prove, he's no fighter.
- Powered by a Forsaken Child: Uses all the hands he steals to form the ultimate piano concerto.
- Psychopathic Manchild: In the TV version, when the ghost woman finally confronts him over the evil he's done, Toggle begins whining like a little boy, saying "I tried my best!"
- Ridiculously Human Robots: Dr. Shreek, again, and several other "instructors" Jerry sees around the school. Not human enough, apparently, and that's where the students come in...
- Self-Made Orphan: Implied in the TV show, where it appears the ghost who has been following Jerry was Toggle's old music teacher and may have been his mother. She also appears to be his first victim.
- Serial Killer: Has a very big body count by the time Jerry becomes a student at the school. Just look at the number of hands he's stolen in the TV episode as further proof of this.
- The Sociopath: He's perpetually friendly and nonchalant even when it's clear how twisted he is, uses his talents for insanely petty and self-serving reasons, and apparently sees nothing wrong with murdering as many innocents as possible to achieve his goals.
- They Look Just Like Everyone Else!: Eccentricities and inventions aside, he's a regular, kindly fellow, which makes it all the more ironic when his atrocities are revealed.
- Would Hurt a Child: He's implied to have already killed several and planned to do the same to Jerry.
Will Blake/Werewolf of Fever Swamp
A streetwise local boy from Fever Swamp, Florida, and the first in a long line of werewolves to appear in the franchise.
- Affably Evil: He's friendly as a human, and even tells Grady he doesn't want to hurt him in the episode.
- Ambiguously Brown: He has vaguely Hispanic features in the Goosebumps Graphix adaptation.
- Arbitrary Skepticism: He frequently scoffs at the notion of werewolves, even when his friends are suspecting the Swamp Hermit. This could imply either he's trying to keep his secret as much as possible, or he's deeply ashamed of what he is.
- Big Bad Friend: To Grady.
- The Bus Came Back: In the movie, though his real name isn't mentioned.
- Composite Character: In the TV episode it's him, not Cassie, who is obsessed with werewolves and accuses the Hermit.
- Dying as Yourself: Sadly subverted. In the TV episode, he reverts partially to human form long enough to warn Grady... and then changes back before Wolf kills him.
- Nice Guy: As a human, anyway.
- Our Werewolves Are Different: A kid wolf.
- Parental Abandonment: Earlier in the book, he mentions his Dad telling him the story of Fever Swamp. When Mr. Tucker pays his home a visit, it's completely empty.
- Poisonous Friend: Grady gets along very well with him. Will kills his family's deer, frames his dog, and tries to kill Grady himself as a werewolf.
- Riddle for the Ages: How did this guy become a werewolf, and how long has he been here? What happened to his parents? Did he even know what he was?
- Tragic Monster: We don't know just how much agency he has as a wolf, but he does seem to avoid attacking people in homes, and begs Grady to stay back after changing back in the episode.
- Walking Spoiler: It's pretty hard to talk about him without mentioning his surprise reveal.
- The Worf Effect: In his book appearance, he gets fought off by Grady's dog. And in The Movie, he gets owned by a nerd with a silver tooth filling. Definitely not cut out to be a werewolf.
Grady And Emily TuckerThe protagonist and his older sister
- Annoying Younger Sibling: Mostly averted; though he kind of gets on Emily's nerves he's not that annoying compared to most Goosebumps younger siblings.
- Cool Big Sis: Rather unusually for this series, Grady and Emily get along ok most of the time.
- Foolish Sibling, Responsible Sibling: Downplayed, but Grady is less responsible and more adventurous than Emily.
- Gentleman and a Scholar: Grady is pretty smart for his age but rarely brags about it.
The Swamp HermitAn eccentric old man living out in the middle of the swamp.
- Adaptational Villainy: Downplayed. In the book, he's every bit as harmless as he's made out to be, chasing the kids through the swamp only to let Grady go as soon as he's alone, and reveal that it was just a joke. In the TV episode, he's still not a bad guy and is just out to avenge his family, but abducting Grady and holding him captive was rather unnecessarily cruel.
- Cloudcuckoolander: Even if he's really not that bad of a person, it is more than a little weird to consider chasing kids through the swamp fun.
- Cool Old Guy: Despite his scariness earlier, he actually turns out to be pretty nice, and returns Grady to his home safely.
- Dark Is Not Evil: Lives out in a cottage in the swamp and is frequently seen carrying dead and mutilated animals, but he's a really nice guy.
- Death by Adaptation: He survives to the end in the book, but in the TV episode, he's killed offscreen by the werewolf.
- Madness Mantra: Repeatedly shouts "I'm the werewolf!" while chasing after Grady, Will, and Cassie. Downplayed, though, in that he's not as crazy as he acts.
- Red Herring: For all his being hyped up to be the werewolf, he's not.
A popular, smart girl who is seemingly not afraid of anything, but is very gullible when it comes to local legends about Mud Monsters.
- The Ace: And how!
- Adaptational Nice Guy: In the book, she threw bees at Eddie in the field trip, while in the TV episode, she did nothing to him and he decided to scare her when she never did anything to him. In Goosebumps: HorrorTown, she is a lot less smug to others about how brave she is.
- Alpha Bitch: She's popular, good-looking, and virtually nothing can faze her.
- Friend to All Living Things: You'd think Eddie and his friends would realize that she's not scared of animals when she tames bees, spiders and rabid dogs.
- Insufferable Genius / Smug Snake: Especially in the TV episode, where she mocks the protagonists for trying to scare her and actually talks the monster to death. The Smug Snake part might be subverted since ultimately nothing blows up in her face and even when she finally does get scared at being terrorized by the monsters, she still comes out on top by gaining more popularity from telling of her experience.
- Jerk with a Heart of Gold: She makes fun of Eddie on the field trip, but also saves him from a snake, offers to share her lunch with a teacher and rescues a neighbor's cat from a tree.
- Lovable Alpha Bitch: She's not too bad of a person once you get past her irritating smugness.
- Named by the Adaptation: Her surname isn't revealed in the book, but is stated in the TV version.
- Nice Girl: Aside from her tendency to condescend to Eddie, she's rather kind.
- Parody Sue: Her ability to excel in everything she ever attempts seems deliberate just for the sake of having Eddie and his friends hate her.
- The Stoic: She acts this way in Goosebumps Horrortown.
The Mud Monsters are zombies who live in the depths of Muddy Creek. Once a year they rise out of the creek to search for victims to drag back with them into the mud.
- Covered in Mud: They are mud.
- Flat Character: Despite being the book's featured monsters, they don't actually show up until the climax at the swamp and are pretty much shambling brutes with no apparent sentience. Of course, a centuries old mass of earth wouldn't exactly have a vibrant personality.
- Our Zombies Are Different: At this point, they're basically half human, half mud.
- Talking the Monster to Death: In the TV show, Courtney does this by going on a rant towards the Mud Monster in order to stall it long enough for it to dry out in the hot sun.
- Tragic Monster: They were originally poor settlers forced to live in huts alongside Muddy Creek because the richer citizens of the nearby village wanted nothing to do with them. On the night of a violent storm, the creek was flooded, washed the village away, and the settlers drowned to death.
- "At that moment, I would have happily traded lives with a tree. Or a bird. Or a bug. Or just about any other living object on the planet."
The constantly bullied and tormented protagonist of Why I'm Afraid Of Bees.
- All of the Other Reindeer: He's a social outcast and a perpetual loser. Even his mom, neighbor and the family cat make fun of him.
- Be Careful What You Wish For: He wishes he had the life of anybody except himself and ends up switching places with a bee.
- Bee Afraid: The entire book, but especially when he gets trapped in one of his neighbors' hives.
- Body Horror: Due to a mishap, when he tries to swap bodies with a handsome local, he instead swaps bodies with a bee.
- Butt-Monkey: Hands down the biggest one in the entire series, and that's saying something. He has ZERO friends, his sister hates him, his beekeeper neighbor is a sadist who loves tormenting him with his biggest fear, and when he finally has a chance to escape his miserable life, he's turned into a bee. Gary isn't just a Butt-Monkey, he's in full-on Woobie territory.
- The Chew Toy: He suffers a lot of injuries, especially on his bike, and that's before he's turned into a bee.
- The Dog Bites Back: After Dirk, the Jerk Jock who has his body, refuses to give it back, Gary finally has enough and coerces his fellow bees into dive-bombing him.
- Deus ex Machina: He remembers too late that bees die after using their stingers, but instead, the shock of his sting somehow puts him, Dirk, and the bee back into their rightful bodies.
- Driven to Suicide: His life sucks so much that at one point, he is tempted to sting his Jerkass neighbor, at the cost of his own life.
- Earn Your Happy Ending: Does he ever. After getting his body back, he becomes much more confident and popular, although he does retain some of the bee's senses and characteristics.
- Embarrassing Nickname: "Lutz the Klutz".
- Straw Loser: He sucks at sports, he doesn't have a single friend, and he spends most of his time on the Internet (or what passed for Internet in the early/mid-90s).
- The Un-Favourite: Even his mom and sister seem to delight in making fun of him.
- Why Did It Have to Be Snakes?: As the title suggests, he's terrified of bees. Naturally, his neighbor is a beekeeper and a total Jerkass.
The longtime farmhand of Jodie's grandparents. Stanley lives with his son Sticks and takes care of things around the farm. Unfortunately, Stanley is also a little slow and very superstitious, which makes for a poor combination when he gets his hands on a book of magic and decides to have things done his way on the farm...
- Aesop Amnesia: Even after everything is said and done, Stanley ends up using the book and accidentally revives the stuffed bear belonging to Jodie's grandfather. In the TV show, he brings to life the wheat thrasher.
- Agent Mulder: Was always easily frightened and worried about things like bad luck. Espouses that the scarecrows walk. He knows because he's the one who can make them do it.
- Amazingly Embarrassing Parents: His son Sticks seems to be embarrassed and annoyed by his obsession with his superstition book.
- Ambiguous Disorder: It's implied he has some sort of developmental disorder, as he acts more like a child than an adult.
- Antivillain: Stanley isn't a bad person, but he's a sensitive one and not very bright. He starts abusing the magic books because he wants to be in charge, but at the same time his new power terrifies him and spirals out of control.
- Cloudcuckoolander: "The scarecrow walks at midnight" is just one of the many bizarre things he's said.
- Evil Is Not a Toy: Learns the hard way that meddling with unknown forces can be just as dangerous for those enacting the magic as it is for those who get targeted by it. Unfortunately, well, see Aesop Amnesia.
- The Man Behind the Man: Of the living scarecrows. Unfortunately, he loses control of them.
- Manchild: It's repeated that Stanley is not the smartest person around, but he's aware of it and it hurts him when people talk down at him.
- Who's Laughing Now?: It's one reason he brought the scarecrows to life, to prove he's not stupid. However, he's far less willing to take things as far as certain other people would in his situation.
The main protagonist of Go Eat Worms! An extreme worm enthusiast who gets more than he bargained for when his pets begin to turn against him.
- Aesop Amnesia: Even after a giant worms tries to get revenge on him for killing one of them, he just switches to killing another species of animal, apparently not having learned his lesson. Unsurprisingly, this doesn't end well for him.
- Asshole Victim: Implied at the end, when a giant butterfly shows up, intending to skewer him with a pin for doing the same to other butterflies.
- Big Brother Bully: He spends most of the first half of the book tormenting his sister Regina with worms. At the end, it turns out that she was the one putting worms in his things, but she was still right about the worms wanting revenge.
- Collector of the Strange: He's collects and is obsessed with worms, though less out of affection for them and more to torment other people and even the worms themselves.
- Cruel and Unusual Death: It's mercifully left unclear, but the book ends with him about to be impaled on his desk with a giant pin in sick irony for how he treated all those small creatures.
- Hate Sink: It's pretty clear that R.L. Stine never intended to make Todd likable.
- Jerkass: Aside from abusing animals, he is rather nasty to his sister and her friend, as well as getting so jealous of Patrick that he decides to trespass on his property and spy on him.
- Killed Off for Real: The book ends with a giant butterfly showing up with a pin, intending to kill him for his animal cruelty.
- Lack of Empathy: He shows very little for the animals he tortures.
- Laser-Guided Karma: Even though he stops killing worms, he still kills butterflies, and a giant butterfly shows up with a pin, intending to get revenge the same way the giant worm intended to.
- Never Bareheaded: He wears a red cap he only rarely takes it off. Even his own mother comments that she seldom ever sees his hair.
- Sibling Rivalry: He competes with Regina in the school science fair and ends up sabotaging her project (a papier-mâché robin) by stuffing worms in the beak.
- The Sociopath: He comes off as this due to his disturbing interest in harming and killing animals, which is one of the early signs of sociopathy.
- Too Dumb to Live: You'd think that after nearly getting killed by a giant worm who intended revenge, he'd learn not to torture animals, yet he just keeps killing butterflies. This is what results in his implied death.
- Took a Level in Kindness: After Regina's robin saves him from a giant worm, he becomes much nicer to her and takes up butterfly-collecting. This is debatable though, since he still abuses animals. In the TV episode, he takes up fishing instead.
- Troubling Unchildlike Behavior: He is way too fascinated with how much pain he can put animals through, be they worms, insects, or fish. His mother is rightfully worried about him.
- Uncertain Doom:He's last seen about to be impaled by a giant angry butterfly. It's never revealed whether he escaped, but given the story is told in third-person, his chances don't look good.
- Villain Protagonist: Debatable. While he isn't entirely villainous per se, he's still a flat-out jerk and a sociopath who tortures his sister and her friend with worms and abuses small creatures. And he gets his comeuppance at the end.
Dozens of worms that Todd keeps in a basement tank and seek revenge when he cuts one of them in half.
- Attack of the 50-Foot Whatever: The giant worm that lives under the softball diamond and attacks Todd at the end.
- Big Bad: The giant worm.
- It Can Think: After Todd cuts a worm in half, his other worms poke their heads up, as if staring at him angrily. Afterwards, worms start showing up everywhere, and Todd begins to think they're getting back at him. He's half-right: Regina put the worms everywhere as a prank, but there is one worm (see above) that does want revenge. In the TV episode, several worms form the sentence "Todd, we will make u squirm" on the wall.
- Mama Bear: "This is the mother worm. She's coming up to protect her babies."
- Mistaken for Quake: The giant worm causes the softball diamond to shake when it begins to surface.
The Sadler Trio
- "It wasn't fair! We barely had a life at all!"
Three little kids who're supposedly cousins of Jerry and Terri Sadler. They warn the twins of a ghost that inhabits a nearby cave. In reality, Sam and his siblings died over 300 years ago, during their family's first winter in America, and they plan to kill the twins so they'll have new friends.
- Adapted Out: Nat doesn't appear in the TV show.
- Big Brother Instinct: Sam and Louisa to Nat, especially Louisa. She comforts him when he cries about the dog skeleton and he hangs onto her when they enter the cave, and both her and Sam comfort him when he's upset about Jerry and Terri not killing the ghost.
- The Leader: Sam, as the oldest, is the one who takes charge.
- Not Growing Up Sucks: They can't get any older and they already didn't have much of a life when they were still alive, so their ability to experience the world around them is very limited.
- Promotion to Parent: Implied to be the case with Sam and Louisa, who're much older than Nat is. Since their parents are not around, it's up to them to look after him.
- Tragic Monster: They died before they could have a chance to actually live life in the new world, and now they're stuck haunting the beach where they died. All they want is some new companionship no matter how they have to get it, and they're consistently stalked and terrified by a man who wants to destroy them.
- Used to Be a Sweet Kid: When they were truly alive. It's possible their niceness to Jerry and Terri was genuine, but they still want to kill the twins so they'll have new companions.
- "You brought the ghosts. Thank you."
An obsessive, bitter, and determined old man, Sadler sees himself as a ghost hunter. He hides out in a cave near his hometown and spies on three ghostly children in the area, seeking to capture them. When Jerry and Terry Sadler show up, he finds his chance.
- Dark Is Not Evil: Living for God knows how long in a cave isn't good for appearances.
- He Who Fights Monsters: So much so that he's willing to use two innocent kids as bait for a ghost trap.
- Pick on Someone Your Own Size: The Sadler spirits may be hundreds of years old, but spiritually they're still kids, and it's implied they're even more afraid of him than the other way around.
- Taking You with Me: Buries himself and the ghosts in a cave in to stop them once and for all.
The Phantom of the Auditorium
A ghost haunting Brooke and Zeke's middle school when their class decides to revive a cancelled play from 70 years ago, appropriately called The Phantom. It is believed he is the boy who was originally going to play the Phantom but disappeared. He is, and he's also Brian, the boy who transferred into Brooke's class.
- Anti-Villain: One of the more benign creatures in the series, he just wants to be in a play so he can rest in peace.
- Cool Mask: The cover art for the book depicts it as just a plain white mask, but the book describes the Phantom's mask as actually being blue-green. The UK cover artwork is a closer example of what the mask is described as.
- Death of a Child: He was part of the class that tried to perform The Phantom back in the 1920s, but he mysteriously disappeared the night before the play went on. It turns out he fell through the trap door beneath the stage and died.
- Expy: Of The Phantom of the Opera.
- Ghostly Goals: He wants to finally put on the performance he was denied when the original play got cancelled.
- Large Ham: When he finally gets to go on stage.
- Never Found the Body: No one ever found the boy's body after he disappeared.
- Non-Malicious Monster: The worst thing he does is incapacitate Zeke so he can perform in the play.
- Real After All: At first it's believed the Phantom is telling everyone to stay away from the auditorium. It turns out the person everyone thought was the Phantom was really Emile, the supposed night janitor. Who then turned out to be a homeless man living under the stage. It's not until opening night that the real Phantom shows up.
Bradley "Skipper" Matthews
A comic book nerd who discovers his favorite supervillain's HQ right in his own town... and soon finds himself starring in the comic book, against his will.
- Adaptational Badass: At the end of the television adaptation of the story, rather than be freaked out by his continued existence as a comic book character, he fully embraces his newfound identity as Colossal Elastic Boy which comes with both a costume and the powers he claimed to have in his fight against the Mutant.
- Big Eater: At least in the show. When he later claims that he's not hungry, his mother immediately realizes he's not feeling well.
- Evil Laugh: In the TV episode, he does this as an Ironic Echo of the Masked Mutant's laugh after defeating him.
- Fantasy-Forbidding Father: His dad views his comic book hobby as a waste of time and frequently makes empty threats to throw out his collection.
- Jerk with a Heart of Gold: Skipper is not a pleasant person and acts condescending and rude to his friends and family for not understanding the merits of comics. However, he also respects Libby's fear when she's afraid of entering the Mutant's lair, shows that he's willing to risk his life to save others when the Galloping Gazelle is in danger, and eventually gives up comics altogether for more bonding time with his little sister.
- Kid Hero: At the end of the book, he becomes a comic book superhero permanently. Showed traits of this earlier when he defeated the Masked Mutant with his smarts.
- Mistaken for Badass: The Masked Mutant assumes that Skipper must be a formidable superhero, and thus the perfect nemesis for him.
- Pop-Cultured Badass: He's not so much a comic book collector as a comic book connoisseur. In the end, his in-depth knowledge of the Masked Mutant's background is what helps him beat him.
- Tricking the Shapeshifter: He pretends to be Elastic Boy and convinces the Masked Mutant that he can only be destroyed by acid. The Mutant then forgets that he can only turn into a solid and back, but once he turns into a liquid, he's stuck in that form.
- What You Are in the Dark: He's a rude jerk to most of his peers, but when he discovers a superhero being tortured in the Mutant's lair through his comic, he can't bring himself to abandon the guy and heads back to save him.
- "I'm sorry, Skipper. But the story is over. Your part has come to an end."
A comic book supervillain with the power to shapeshift, the Masked Mutant traveled to our world where he met his biggest fan... and tried to kill him.
- Actually a Doombot: The Mutant encountered by Skipper and the Galloping Gazelle is actually a henchman with similar shape-shifting abilities. He's killed by the real deal.
- Affably Evil: He notably acts apologetic towards Skipper before announcing that his part in the story has come to an end.
- Apologetic Attacker: As evil as he is, he does apologize to Skipper before attempting to kill him, as if he feels he has no choice.
- Badass Cape: It's very Batman-esque.
- Be Careful What You Wish For / Gone Horribly Right: Tells Skipper hes always looking for new, more worthy opponents for his comics, and sees one in Skipper. Unfortunately for him, Skipper turns out to be just this, as he is able use his knowledge of the Masked Mutant to exploit the Mutants only weakness.
- Big Bad: Of Attack Of The Mutant, as well as the in-universe comic he stars in.
- Blue-and-Orange Morality: He knows full well he's in a comic book, and therefore doesn't believe his actions are going to have any moral impact.
- Bond Villain Stupidity: Taken Up to Eleven. Despite having the Galloping Gazelle captive and knowing that at least Skipper is coming to try to rescue him, he leaves ''all'' of the booby traps off.
- Card-Carrying Villain: A very self-aware example. He repeatedly boasts about being a supervillain.
- Consummate Liar: He's known for being an excellent liar. However, as far as Skipper being a comic book character now, he was telling the truth.
- Cool Mask: It makes him look like a demonic Batman.
- Cruel and Unusual Death: How he disposes of Molecule Man. Melting a guy alive,slowly? That's cruel. Melting a guy alive as a pre-teen girl with a plastic toy gun? His eulogy's going to be very awkward.
- Cut Lex Luthor a Check: It's implied the Masked Mutant comics are made by the Masked Mutant himself, as he even has a printing press in his base. Presumably he makes them for money, but considering he invents an invisibility curtain at one point, you'd think he'd sell those instead as it would be a lot more lucrative.
- Didn't Think This Through / Too Dumb to Live: Your only weakness is turning into a liquid. A boy, claiming to be made of elastic, tells you his only weakness is liquid sulfuric acid. What do you do to destroy him? Turn YOURSELF into LIQUID sulphuric acid.
- The Dog Was the Mastermind: Hands up, who guessed Libby was the villain?
- Evil Redhead: As "Libby", his human guise.
- For the Evulz: The reason why he kills his henchman.
- Genius Bruiser: A ruthless combatant and cunning manipulator who employs some pretty complicated gadgetry.
- Genius Ditz: Despite the above, he's ridiculously overzealous and gullible when he falls for Skipper's "Elasti-boy" ruse. Which is a name he made up on the spot.
- Hoist by His Own Petard: His shape-shifting ability ends up dooming him when Skipper tricks him into turning into a liquid, which he cannot revert back from.
- Hollywood Acid: Morphs into a large wave of this to kill Skipper. It doesn't work.
- Humanoid Abomination: We are never told exactly what he is, but he's far from human.
- Invisibility Cloak: His lair employs this to keep away enemies, as well as to lure a curious Skipper into his trap.
- Kick the Son of a Bitch: His murder of Molecule Man, who was apparently just as Ax-Crazy and cruel as his boss.
- Large Ham: In the TV episode, he absolutely devours every scene he's in.
- Manipulative Bastard: As "Libby" he tries to discourage Skipper from heading to the invisible base, while knowing full well he's going to do it anyway after reading the latest comics.
- Not-So-Harmless Villain: What we see of his comics would have you believe he's just some campy weirdo. He proves otherwise in some truly horrifying ways.
- Noodle Incident: No explanation is ever given for how he came to the real world.
- Has the power to transform into any being, animal - or object. This comes back to bite Skipper when he infiltrates the Mutant's office, only to find too late that the Mutant is already there - disguised as the desk. It's actually the Magnificent Molecule Man impersonating the Mutant, but there you go.
- In the TV series, he takes the form of a chair and waits until the Gazelle makes the mistake of sitting on him. Cue immediate constricting attack.
- The Only One Allowed to Defeat You: Kills his henchman for trying to finish off Skipper before him.
- Pick on Someone Your Own Size: Toward Skipper. His insane logic is that since this kid knows everything about him while the heroes of his world are complete idiots, he'll make a perfect opponent. Surprisingly enough, he was right.
- Pop-Cultured Badass: In his "Libby" persona, he has his own collection of comics. The fact that they are ones Skipper considers lame and poorly written just sells his disguise even more.
- Punch-Clock Villain: The whole point of his existence is to be the perfect villain for his target audience. Then again, he seems to really enjoy his job.
- Shapeshifting Seducer: Tries to gain Skipper's trust in the form of an attractive young girl named Libby. Thankfully, this remains strictly platonic.
- Shapeshifter Default Form: A towering figure with a purple mask and cape. However, we never see him unmasked, and it's not even clear if this is his true form.
- The Spook: While most entities in this series are given a few hints to just what they are (either in book or tie-in material), the Mutant doesn't even have that. We never know his real name, just what he is, the origin of his powers, or how he even crossed over into our world. He's just there.
- Story-Breaker Power: A possible reason he hasn't been used since. He can become almost anything he wants and Skipper was only able to beat him through trickery. Most normal kids wouldn't stand a chance.
- Tricking the Shapeshifter: How Skipper takes him down.
- Villain Protagonist: In-universe example. The comic books Skipper collects feature the Masked Mutant as the main focus of the stories.
- Voluntary Shapeshifting: Supposedly accomplished by "rearranging his molecules."
- Victory Is Boring: Apparently his motive for targeting Skipper. He was always one step ahead of the heroes in his world, and in his opinion, the kid was the only one who would provide a challenge.
- The Worf Effect: By way of a twelve year old.
- Walking Spoiler: He never makes a full appearance until the last four chapters, but his reveal puts the story in a much, much more disturbing context.
- Worthy Opponent: To a degree. He takes time to explain what's going on to Skipper so he won't die too confused.
The Galloping Gazelle
The Masked Mutant's arch-nemesis.
- Adaptational Heroism: In the video game he starts out as cowardly as he was in the book and TV show, but realizes this attitude is wrong and starts acting braver.
- Big Good: He's the leader of the League of Good Guys, an organization of superheroes determined to stop the Masked Mutant.
- Dirty Coward: After the Masked Mutant kicks his ass, he simply ditches Skipper and leaves him at the Mutant's mercy. Skipper laments that he should call himself the Galloping Chicken instead.
- Distressed Dude: The Masked Mutant kidnaps him as bait to lure Skipper back into his HQ, and into a trap.
- Heel Realization: In the video game through interactions with the player character.
- Screw This, I'm Outta Here!: "I'm too old for this superhero stuff. You're on your own, kid!"
- The Worf Effect: Despite his reputation as a famed hero, he gets soundly trounced by the decoy Mutant to show Skipper's in serious trouble.
- Butt-Monkey: Downplayed, but he does seem to be at the bottom of the pecking order amongst his friend group
- Embarrassing Nickname: The others often tease him and call him "Hairy Larry".
- Tomato Surprise: He's not a human. He's a dog.
- Vanity Is Feminine: Gender-Inverted Trope: He's kind of vain, particularly about his hair, as such when he starts growing hair in weird places for no apparent reason he's afraid his friends will tease him about it if he tells them.
- You Are What You Hate: He's always being chased by dogs who seem to dislike him for some reason. It turns out he IS a dog who has been turned into a human through mad sciencey medicine, and the dogs can presumably smell that he's not really human.
Larry's best friend
- Lovable Alpha Bitch: She's the leader of the band and their social group in general, and while she teases Larry a lot it's clear she really does care about him. She turns out to be a literal example of this trope: she's a female dog who, like Larry, was turned into a human with some weird serum.
- Mismatched Eyes: Has one blue and one green eye. She doesn't really mind as most people think it's kinda cool.
- "I fell asleep that night a happy guy. Theres nothing like revenge."
The long suffering brother of Tara Webster and protagonist to The Cuckoo Clock of Doom.
- A Birthday, Not a Break: Tara sees to it that his birthday is as horrible as possible.
- Butt-Monkey: His sister makes his life miserable and his parents do nothing to stop her from doing so.
- Cassandra Truth: His parents never believe him about the terrible stuff Tara does to him, nor do they believe him about time going backwards.
- Didn't Think This Through: When reliving preschool, four-year old Mona and Ceecee dare him to climb up a tree. It sounds easy enough at first, but he quickly realizes that it's not nearly as easy for a four-year old to climb a tree as a twelve year old... and that he had broken his arm in preschool..by climbing a tree...YEEEEOOOOWWW!!
- The Dog Bites Back: Him attempting to get his sister unfairly in trouble with their parents as revenge for all the times she got him unfairly in trouble.
- Don't Make Me Take My Belt Off: It's subtly implied this is how his dad deals with him whenever Tara blames him for something.
- Earn Your Happy Ending: Setting the clock back to the way it should be not only restores Michael's timeline, but also erases Tara from existence due to its flaw (it doesn't have 1988, the year Tara was born, on its year dial). Michael's life becomes extremely more enjoyable, but says he might go back and save her. Maybe.
- Fountain of Youth: Him turning the bird's head backward on the clock results in him going back in time and becoming gradually younger, and eventually regressing to an infant.
- The Mind Is a Plaything of the Body: While growing younger doesn't seem to have any effect on Michael's intelligence for the most part, at one point, when four-year old Mona pours a bucket of water on his head in nursery school, he mentions he felt a stranger urge to burst into tears and run to his teacher for help.
- Set Right What Once Went Wrong: Subverted. When forced to relive the terrible days the clock sends him back to, Michael thinks he is prepared to avoid the terrible things Tara put him through. Unfortunately, since he does not quite remember the details of how they played out, ie, where exactly Tara tripped him on his birthday, or that his dad fixed the lock on his door after his birthday after Tara opened the door on him changing in front of Mona, all of the mishaps happen again just as painfully as before.
- The Un-Favourite: His parents practically worship Tara and treat him like garbage. When she's gone, his parents are no longer abusive.
- "I don't have to wreck [your birthday]. It's bad all by itself—just because it's the day you were born."
Michael's bratty, sadistic little sister.
- Adaptational Nice Guy: Very downplayed. Tara still isn't a good kid at all in the TV episode, but most of her more disturbing sociopathic behavior (getting Michael beat up, tormenting the cat) isn't shown or mentioned, with the worst thing she does humiliating Michael at his party. She comes off more as a standard bratty sibling than an Enfant Terrible, which also might make her erasure from time unintentionally seem much more like Disproportionate Retribution than in the book.
- Annoying Younger Sibling: Good fucking grief.
- Asshole Victim: She is erased from existence. Only Michael knows and it's clear he's in no rush to bring her back.
- Bad People Abuse Animals: In addition to her brother, she also loves to torment Bubba, the family cat.
- Bitch in Sheep's Clothing: She's very skilled at making her parents believe she's totally innocent.
- Big Brother Bully: Inverted. She's the little sister who loves to make her big brother's life miserable.
- Blatant Lies: She claims that she put Kevin Flower's cap in Michael's backpack because she thought it was Michael's... yeah right.
- Bratty Half-Pint: Oh, "bratty" doesn't even BEGIN to describe her.
- Creepy Child: The fact that she enjoys tormenting her brother so much, is able to manipulate her parents and doesn't seem to show any remorse qualifies her as this. What's more is that she's even this horrible when she's an even younger child, even as a baby when she pokes Michael in the eye.
- Early Personality Signs: Her asking her brother to kiss her when she was a baby only to poke him in the eye when he tried to do so was an early hint that she was never going to be a good girl at all.
- Enfant Terrible: She's tormented her brother ever since she was a baby. The fact that her terrible behavior started out from the time she was an actual infant shows there is something really wrong with this girl.
- For the Evulz: She torments her brother simply because she enjoys making him miserable.
- Hate Sink: There is and never was absolutely anything redeemable about this girl.
- Humans Are the Real Monsters: While the cuckoo clock is technically the villain, it's mostly harmless unless someone messes with it, which Michael wouldn't have done if not for what a horrible person his sister is.
- In-Series Nickname: "Tara the Terrible".
- Jerkass: It almost seems redundant to keep going on about her horribleness.
- Lack of Empathy: She never once shows any compassion or empathy towards her brother, or remorse for everything she does to him, nor does she show any empathy towards anyone else, as she only cares about other people if they can help her make Michael's life miserable.
- Manipulative Bitch: Not just towards her parents, but pretty much everyone except Michael and Bubba are borderline incapable of thinking she could do anything wrong and she milks it for all it's worth to make Michael suffer.
- The Millstone: She is, or was, literally everything wrong in Michael's life.
- Parental Favoritism: Their parents obviously favor her, believe her to be completely innocent, and call Michael a liar when he defends himself.
- Ret-Gone: Due to a flaw in the clock, she is erased from existence. Michael decides he will probably find a way to go back and get her sometime... maybe.
- Sadist: She seems to know exactly how miserable she makes Michael and really enjoy it.
- The Sociopath: She never shows any remorse for the horrible things she does to her brother, which include getting him beaten up and ruining his birthday party. She doesn't care at all about other people besides Michael either, not caring about anyone who becomes collateral damage in her attempts to make Michael's life hell, and she's very skilled at manipulating her parents to make them think she's a good girl. The book also shows her torturing the family cat, again from a young age.
- Spoiled Brat: Her parents dote on her and turn a blind eye to her horrendous behavior towards her brother.
- Troubling Unchildlike Behavior: There's something seriously wrong with her that goes way beyond just being annoying. She's a sadist who takes immense pleasure in making her brother suffer and, despite her age, knows how to manipulate the adults around her. It is also mentioned that she has tortured the cat from a young age. One can only imagine what she might have grown up to be if it hadn't been for the clock.
- Tuckerization: According to one of the Collector Caps books, she was named after a fan R.L. Stine met at a book signing, who requested that she be put in a book and her character be bad. She certainly got her wish on that front.
Michael's classmates and friends from school, who also de-age as time regresses.
- Adaptational Nice Guy: In the books, young Mona is a Bratty Half-Pint who ridicules Michael, bullies him and dares him into climbing a tree, resulting in him breaking his arm. In the tv version, she shows concern for him when he's stressed out about the possibility of being erased from time.
- Bratty Half-Pint: Michael finds that his secret love interest Mona was this in preschool, where she torments him almost as badly as Tara did. Ceecee also seemed to be a bit of one too.
- Demoted to Extra: They were all major supporting characters in the book, but those of them that made into the tv adaptation suffer from this in the tv version due to its 22 minute time frame. Their only appear in the sequence with Michael's disastrous twelfth birthday and when Michael is reliving his sixth birthday. Josh and Henry have only a couple of lines, both as twelve and six year olds, and Mona has no lines at all as a twelve-year old and only two as a six-year old. The rest of them, like Ceecee and Kevin Flowers, are Adapted Out.
- Disproportionate Retribution: Tara frames Michael for slipping a jock named Kevin Bower's favorite cap into his backpack. How does Kevin respond? By beating Michael up so bloodily and severely that he claims his chin and eyes switch places and his own mother didn't recognize him when he came home.
- Fountain of Youth: Like Michael, they also grow younger at time goes backwards, but do not retain their twelve-year old memories.
- Jerk Jock: Kevin Flowers, who beats Michael senselessly when Tara frames him for stealing his cap.
- Love Confession: Well, sort of. When Michael is reliving his birthday in the timeline where Tara no longer exists, Ceecee reveals to Michael that Mona actually has a crush on him too, to which Mona shyly blushes.
- No Sympathy: While they seem to genuinely like Michael, they're never behind Michael when Tara is humiliating him and are even willing to mock him for it.
The Cuckoo Clock Of Doom
The titular machine from the book of the same name. It enters the unhappy Webster home and changes things forever.
- Ambiguously Evil: It's never clear how sentient the clock is, but it does seem to single out Michael as its subject. Though this makes at least some sense in that he was the one who messed with the clock in the first place.
- Artifact of Doom: For anyone foolish enough to fiddle with it, anyway.
- Butterfly of Doom: Knocking off one of the years on its calendar is enough to wipe out anyone born at the time.
- The Cameo:
- Chris bumps into it while exploring the eponymous haunted mansion in the TV adaptation of "The House of No Return."
- Similarly, Zach stumbles onto it while wandering though R.L. Stine's basement in the 2015 film.
- It pops up in the bookstore at the beginning of the comic book story Monsters at Midnight, with a sign on it that reads, "Not broken, just taking a break."
- Feathered Fiend: The cuckoo bird, shown prominently on the cover. Turning its head back triggers the clock's powers.
- It Can Think: It forms some kind of psychic link to Michael as he goes backwards in time, and only makes things normal when he turns the bird head around. On the cover, it's outright glaring at you.
- Mental Time Travel: Happens to anyone that twists the bird's head.
- Pet the Dog: If you believe it had any sentience or agency, then wiping Tara out of existence and thus vastly improving Michael's life may count. Of course, it's also possible that it didn't want to make Michael's life better and just wanted to erase someone out of existence.
- Time Machine: Not a very beneficial one, though.
An evil sponge-looking creature that bestows bad luck on anyone who comes into possession of it - and death to anyone who tries to get rid of it.
- Big Bad: Of It Came From Beneath The Sink!
- Clingy MacGuffin: Once you discover one, you're stuck with it for life. Attempting to get rid of it will only cause you to die after you are separated from it for too long.
- Eldritch Abomination: It's essentially a sponge with glowing eyes - and in the TV episode, it has teeth as well.
- For the Evulz: It literally feeds off of bad luck and negative energy, and gets stronger and healthier the more people around it suffer.
- Reverse Psychology: The protagonists manage to defeat it by literally killing it with kindness.
- Spared by the Adaptation: In the book, the protagonists managed to kill it by realizing kindness weakens it. In the series, it's not enough to actually kill it, so they instead trap it inside a small prison of various nice things to prevent it from growing again.
- "I get scared a lot. Some people just scare easier than others. I'm an easy scarer."
The protagonist of The Barking Ghost. Cooper's definitive trait is his fear of almost everything, as he even gets scared of small things such as a garden hose and leaf. It certainly isn't helped by the fact that the ghost dogs continuously stalk him during the night. Despite his fears, however, Cooper has moments of bravery, as he does go out into the woods to investigate the dogs who had been stalking him during the night.
- Adorkable: His scared and meek personality comes off as rather funny and cute.
- Ambiguous Disorder: His fears over minor objects (such as garden hoses and a leaf) goes beyond excessive, causing some to infer he has some kind of disorder.
- Body Horror: He and Fergie experience this when turned into dogs and later chipmunks.
- Butt-Monkey: His fears of almost everything makes him an easy target for scaring.
- Cain and Abel: He has this relationship with Mickey, being the Abel, of course.
- Cassandra Truth: Because he often lets his fears get the better of him, no one in his family believes him about the ghost dogs.
- Character Tic: Cooper mentions that whenever he gets scared, his freckles stand out.
- Cowardly Lion: Cooper doesn't let his fear stop him from investigating the ghost dogs.
- The Dog Bites Back: Despite the pun, Cooper never actually bites Mickey when he and Fergie enter his room unexpected. They do, however, scare him out of his bedroom at their successful attempt at finally getting back at Mickey.
- Embarrassing Nickname: Mickey often calls him "Drooper" due to his large, droopy ears, something Cooper gets easily irritated of.
- Faux Horrific: Even something as minor as a leaf brushing on from behind him makes him jump in fear.
- Nervous Wreck: Oh ho, you have no idea!
- Properly Paranoid: He's a scaredy cat in general, but from the ghost dogs barking at his window almost every night, Cooper has an excellent reason to be worried. Luckily, Fergie is the only one who believes him.
- Redheads Are Uncool: He has long, red hair used to cover his ears and is, in general, a scaredy-cat.
- Sensitive Guy and Manly Man: He's the scared, sensitive guy to his brother's aggressive, manly man.
- Tears of Fear: Cooper mentions in one point of the first chapter that he was once so scared when he thought he was lost in the woods that he was practically in tears, which, of course, was a waste of his fear after learning he was only about ten feet from the mess hall.
- Throw the Dog a Bone: Pun aside, Cooper does get his chance to scare Mickey when he and Fergie break into his room as ghost dogs.
- Trademark Favorite Food: Liver. Cooper attempts to invoke this to prove his identity, but it fails.
- Why Did It Have to Be Snakes?: Basically anything scares him.
- Youthful Freckles: They stand out whenever he's scared.
Cooper's older brother. He spends most of his free time exploiting Cooper's fears by playing cruel pranks on him that would normally terrify him.
- Adaptational Karma: In the TV episode, it's Mickey who turns into a chipmunk at the end instead of Cooper and Fergie.
- Asshole Victim: As mentioned in Adaptational Karma above, Mickey is the one who gets transformed into a chipmunk as Cooper and Fergie walk away in their own bodies.
- Big Brother Bully: Mickey enjoys scaring his younger brother with whatever's handy.
- Cain and Abel: The Cain to Cooper's Abel. His and Cooper's rivalry can get rather intense to say the least.
- Catchphrase Insult: He often refers to Cooper as "Drooper" due to his ears.
- Complexity Addiction: Seriously, Mickey has to have been really bored to go through so much effort to tear his clothes apart and cover himself in fake scratches and blood just to scare Cooper, a person who's already easy to scare, into thinking the dogs mauled him.
- Establishing Character Moment: His introduction involves hiding under Cooper's bed and scaring him to death by grabbing Cooper by the throat, which sets up how much of a general Jerkass he is towards Cooper and what he does to him in his free time.
- For the Evulz: The only reason we could infer that Mickey scares Cooper so much is that he's just bored and has nothing better to do.
- Gaslighting: One of Mickey's pranks on Cooper got him scared to a point where he claims to his parents that the house the family lives in is haunted, and Fergie was even in on the plan as well.
- Jerkass: His defining trait is that he's an asshole older brother who takes great pleasure into finding new ways to scare Cooper.
- Jerkass Has a Point: Even though he isn't one to talk, Mickey is right at one point that Cooper needs to grow up and stop being scared of such small things.
- "Just Joking" Justification: He uses this whenever the boys' parents call him out on his pranking of Cooper.
- Kick the Dog: Pardoning the pun, Mickey goes through great lengths to scare Cooper in ways that would legitimately terrify him. Hell he'll even go as far to physically hurting Cooper to scare him.
- The Prankster: Most of them he plays on Cooper are fear-based.
- Sadist: He makes sure he enjoys every moment of Cooper suffering from acute fear of certain things.
- Sensitive Guy and Manly Man: He's the aggressive, prank-loving manly man to Cooper's scared, sensitive guy.
- The Sociopath: Many of his pranks to scare Cooper can come across as this, such as the time he had Cooper scared by taking so long to pick him up from baseball practice just to see how long it would take him to go on a panic attack. And we don't even have to refer to the above-mentioned Gaslighting trope.
- Teens Are Monsters: Or at least, in Mickey's case, a total asshole.
Margaret "Fergie" Ferguson
Cooper's new friend who first interacts with Cooper during the latter's investigation for signs of the dogs' appearance from last night.
- Adorkable: Her first encounter with Cooper has her blushing with embarrassment and uttering "dogs" randomly.
- Body Horror: She shares this with Cooper when she changes into a dog and later, chipmunk.
- Easily Forgiven: Aside from pranking her back, Cooper doesn't hold a grudge against her after learning she set up the Gaslighting prank with Mickey.
- My God, What Have I Done?: Her reaction when she reveals to Cooper that telling him the house was haunted was all a prank set up by her and Mickey.
- Nice Girl: She's very caring for Cooper's concern and is pretty much the only one who believes him about the ghost dogs. She even apologizes to Cooper for the prank set up by her and Mickey.
- Only Known by Their Nickname: She goes by "Fergie" and is rarely addressed by her given name.
- Satellite Character: Aside from being the token friend, she really doesn't have much of a role in the story.
- Significant Green-Eyed Redhead: She's described as having frizzy red hair and green eyes, and is the protagonist's friend.
- What the Hell, Hero?: Cooper's reaction to Fergie after the latter admits telling him that the house is haunted was all a prank set up by Mickey, which she was even in on.
Wendy and Elliot
- "To me, a game is just a game. But to Elliot, every game is life or death."
The protagonists of The Horror At Camp Jellyjam, two preteen siblings who separate from their parents after the trailer they were in unhitches from the car it was attached to and rolls down to Camp Jellyjam.
- Allergic to Routine: Both Wendy and Elliot get rather bored easily.
- Ambiguously Brown: Their mother is described to be blonde and fair-skinned while Wendy, Elliot, and their father all have a darker complexion of their skin, implying that the siblings are biracial, though it's never actually confirmed. The Goosebumps Graphix adapation makes them all on African American.
- Annoying Younger Sibling: Averted with Elliot. While his competitive streak gets on Wendy's nerves sometimes, he doesn't act like a Spoiled Brat.
- Badass Adorable: Wendy. See below.
- Badass Normal: Wendy was able to defeat King Jellyjam by having him grab her while the children lie down and melt into his own putrid stench. She's also one of the few protagonists of the series to destroy the villain with leadership and bravery.
- Competition Freak: Elliot. As Wendy puts it, "To Elliot, every game is life or death."
- Deadpan Snarker: Wendy can sometimes be this when annoyed.
- Earn Your Happy Ending: Wendy and Elliot are reunited at home after the former defeats King Jellyjam.
- Foolish Sibling, Responsible Sibling: Downplayed. While Wendy sometimes takes the role as the responsible, Elliot is more adamantly competitive rather than flat-out foolish, as he doesn't act as an annoying pest to Wendy.
- I Have Brothers: Wendy mentions to her new bunkmates that she's used to dumb jokes due to having Elliot as a brother.
- Nobody Calls Me "Chicken"!: Wendy would often use this against Elliot to prompt him to compete in whatever game the two suggest.
- Only One Name: Their surname isn't revealed in the story.
- Only Sane Woman: Wendy is the only one in the book who isn't obsessed with winning.
- Sore Loser: Elliot simply can't stand losing, which sometimes worries Wendy.
The mascot of the titular camp in The Horror at Camp Jellyjam. A disgusting smelling purple Blob Monster that sweats snails, and must be constantly cleaned and bathed by his slaves.
- And I Must Scream: He can never leave his cave, and apparently he's been there his whole life. Throughout most of the book the counsellors act as his eyes and ears.
- Big Bad: Of The Horror At Camp Jellyjam.
- Blue-and-Orange Morality: He's literally been in a cave his whole life trying to survive, so naturally he knows nothing of human empathy and mercy.
- Berserk Button: Interfere with his constant bathing, and you're lunch.
- Blob Monster: One that sweats snails and wears a crown.
- Child Eater: He eats campers that try to take a break from washing him, and doesn't appear to live off of anything else.
- Dark Lord on Life Support: He's too massive to leave his cave, and needs to have his deadly smell constantly washed away to survive. Ironically, this continued dependence leads to his downfall.
- Eldritch Abomination: According to Word of God, he was formed when a camper left a bowl of gelatin inside a radioactive, snail-infested cave.
- Expy: Shares some similarities with Jabba the Hutt - both are hedonistic blob monsters that own slaves, have said slaves eaten if they displease them, and suffocate to death via their own means. Also, see Satanic Archetype.
- From Nobody to Nightmare: If you take his recent reprint's origin story as canon, he began life as a small mutant slug born from radioactive waste and a cup of jello.
- Freudian Excuse: He was born into his repulsive condition by careless humans, and is motivated by desperation to survive. It doesn't make him any less horrible, but it does explain why he's like that.
- A God Am I: To Jellyjam, humans are little more than toys, and the counselors worship him like a god.
- The Hedonist: He literally spends all day sitting in a cave being tended to by his slaves and marinating in his own B.O. Doesn't get much more hedonistic than that.
- Hoist by His Own Petard: He suffocates to death on his own stench after his child slaves stop washing him. This is likely because he spent so much time being washed, he never actually had time to adapt to the smell. In the end, his desperate attempts to sustain himself were what destroyed him.
- It's All About Me: He sees the children and counselors as nothing more than tools to keep himself alive, and has brainwashed the counselors into dedicating their lives to serving "The Master".
- Knight of Cerebus: He's one of the only villains in the series to have actually killed people (by eating them). God only knows how many campers he ate before his eventual defeat.
- Manipulative Bastard: Acting through the counselors, he plays on the children's desire for rewards and victory, which leads them into his slimy clutches.
- Monster of the Aesop: Essentially in a story where most of the characters (including the protagonist's brother) are extremely over-competitive and obsessed with winning, Jellyjam is there to show the sinister side of where too much competition can get you.
- Psychic Powers:
- Mind-Control Conspiracy: Camp Jellyjam is one giant front to acquire new slaves for him.
- Mind Rape: Under his power, dozens of innocent men and women have become grinning, emotionless zombies. Even worse, now and then his control starts to wear off...
- People Puppets: Again, those poor camp counselors.
- Mistaken for Quake: His burps are powerful enough to shake the ground.
- Satanic Archetype: A giant underground monster who manipulates power-hungry, competitive people into being his toys. Sound familiar?
- Silent Antagonist: Clearly sentient and cunning, but he never does and probably can't speak. Councillor Buddy seems to act as his mouthpiece.
- Walking Spoiler: To the point where he's not even on the original cover of his book. The new cover art changes this, though.
- Weak, but Skilled: His large size doesn't leave much room for physical strength. Doesn't stop him from becoming one of the most dangerous menaces in the whole franchise, though.
- Weaksauce Weakness: His stench. His lungs are apparently so weak that taking it in for one moment is enough to kill him.
Joe and Mindy Burton
The protagonists of Revenge of the Lawn Gnomes, two siblings whose father buys lawn gnomes that come to life.
- Amazingly Embarrassing Parents: Mindy is embarrassed by her father's obsession with lawn ornaments.
- Ambiguous Disorder: OCD for Mindy, due to how over-the-top organized she is.
- Annoying Younger Sibling: Joe is one of the rare examples who is the protagonist, taking every opportunity to pester Mindy.
- Black Sheep: Mindy isn't as interested in gardening as the rest of the family.
- Crying Wolf: Due to his love of pranks, Joe's parents think he's just joking around like he always does when he tells them the garden gnomes are alive.
- Feuding Families: Their father and Mr. McCall, Joe's best friend Moose's father, are gardening rivals. It's friendly at first, but quickly gets more serious when Joe's father thinks Mr. McCall is deliberately sabotaging his gardening.
- Foolish Sibling, Responsible Sibling: Joe is the foolish and easy-going to Mindy's responsible and organized.
- Forbidden Friendship: Downplayed with Joe's friendship with Moose, the son of his father's gardening rival. They're allowed to hang out, but this gets complicated as their fathers gradually become more antagonistic towards each other.
- Hair of Gold, Heart of Gold: Mindy has blond hair and is the nicest and most mature of the three kids in general.
- Nice Girl: Despite being kind of a stick in the mud Mindy is generally a lot more likable than Joe or Moose (who spend all their time playing pranks and generally being annoying).
- Noodle Incident: It's never really explained why Mindy has Super OCD, or why her parents don't give her any treatment for it (although it wasn't as recognized in The '90s as today).
- No Sense of Humor: Mindy has little to no patience for Joe and Moose's jokes and pranks.
- Not So Different: Joe shares the lawn gnomes' love of pranks and mischief.
- Only Sane Woman: Mindy is far more sensible than Joe and his friend Moose.
- The Prankster: Joe, particularly towards Mindy.
- Super OCD: Mindy needs to have everything organized, from her closet to her dinner.
Lawn ornaments bought by Joe and Mindy's father that come to life. In Planet of the Lawn Gnomes, they reside on an entire planet with robots.
- Adaptational Badass: While in the book they are more annoying than threatening, in the movie they manage to tie up Stine and throw a knife at the group.
- The Fair Folk: Possibly. The book calls them "mischief elves", and while it doesn't explicitly say they are fairies or the like, they fit the "malevolent prankster" archetype often assigned to fair folk.
- The Farmer and the Viper: After they tell the kids the shopkeeper is holding their friends prisoner, Mindy takes pity on them and convinces the group to help them. It turns out to all be a trick; there's a bunch of gnomes waiting to ambush them and do a bunch of messed up things to them.
- Gaslighting: They show signs of being alive in front of Joe and wreck Mr. McCall's plants, causing Joe's parents to doubt him and creating havoc between the families.
- Manipulative Bastard: Hap and Chip tell Joe and Mindy they're enslaved and forced to perform mischief, begging the kids to help free them. It turns out they were lying to lead Joe and Mindy to the rest of the gnomes and enslave them.
- Our Gnomes Are Weirder: Ones that come to life and call themselves "mischief elves".
- Troll: They love causing mischief and wreaking havoc.
- Weaksauce Weakness: Joe blowing his dog whistle causes them to freeze.
Erin Wright and Marty
Two "lucky" fans of the Shock Street franchise who get a sneak preview of the upcoming Shock Street theme park. Erin is the daughter of a special effects designer.
- Adaptation Name Change: For some unclear reason, Marty is renamed Josh in the graphic novel version.
- Agent Scully: Marty refuses to admit how terrified he is that these monsters might actually be real, to the point of saying "Your father can explain it all!" after he's nearly been dragged to his death by zombies.
- A.I. Is a Crapshoot: Marty theorizes this as to why the monsters are acting volatile. Turns out to be true, but not in the way he thinks.
- Break the Cutie: They go into Shock Street as happy, wide-eyed fans and come out as frightened, shell-shocked victims. It's especially bad for Erin, who as far as she knows is being put through hell by her own father.
- Break the Haughty: Marty goes into the tour cocky and fearless and becomes slowly terrified by the horrors there.
- Creepy Twins: Not personality wise, but "creepy" in the sense that they're two identical androids slowly becoming corrupted.
- Daddy's Girl: Erin clearly has a happy relationship with her dad, which just makes the twist that much more depressing.
- Fangirl/Fanboy: They're both huge horror fans and are pumped to see every monster from the films up close. Of course, they were created to be that way.
- The Gadfly: Marty never passes up a chance to scare or tease Erin, and even fakes being eaten at one point.
- Girlish Pigtails: Erin in the comic adaptation.
- Inexplicably Identical Individuals: Erin clarifies that she and Marty aren't twins nor siblings despite how many physical similarities they share. This is especially notable in the comic version, where they look like the same character model in different outfits. The effect is slightly unsettling, especially when you realize they were built from the same model.
- Nightmare Fetishist: Their love of horror movies.
- Pintsized Powerhouse: In one particularly bizarre instance, the two defeat giant metal praying mantises by stomping on their front legs. This could be another clue that they aren't normal children.
- Ridiculously Human Robots: These kids are actually lifelike and sentient androids created as the ideal Shock Street fans by Mr. Wright. The problem is, they started to form lines of thought that weren't programmed, such as Erin's mother.
- Sanity Slippage: As their programming became corrupted, their line between reality and fantasy became blurred, to the point where Erin didn't even recognize her father. One wonders how far they would've fallen had he not taken them for repair.
- Turned Against Their Masters: In the TV episode, where they presumably attack their creator.Erin: Everything wants to live. Even robots.
- Why Did It Have to Be Snakes?: Erin hates bats, which Marty teases her about.
Shock Street Monsters
These are the various monsters and ghouls popularized in the Shock Street franchise. Erin and Marty think they're the coolest, but their admiration of the creatures starts to wane when they try out the Shocker Studios tour, and realize they may not be fake.
- Alliterative Name: Mad Mangler, Sweet Sue, the Pirahna People, and the Fabulous Frog aka The Toadinator.
- Big Creepy-Crawlies: There are giant praying mantises living in the Cave of the Living Creeps.
- Creepy Doll: Sweet Sue, a lovable baby doll that is actually a serial killer from Mars.
- Generic Doomsday Villain: None of the creatures encountered by the kids have any distinct personality or reason for attacking, other than they're monsters. Justified somewhat when you realize they aren't even real to begin with.
- Our Monsters Are Different: Oh so much. There doesn't seem to be a definite theme going with these monsters other than they all live on Shock Street. They vary from giant insects to mutants to serial killers to aliens to a weird mix of the three.
- Our Werewolves Are Different: There are three mentioned, Wolf Boy and Wolf Girl from A Nightmare on Shock Street, and the Wolf Crab, a bizarre wolf/crab hybrid from the recently released Shocker VI.
- Psycho Electro: Shockro, as noted by "Shockro's House of Shocks", and the Electric Eel Woman supposedly has this power when the kids mention her frying a bunch of teenagers.
- Red Herring: A Shocker on Shock Street appears to be about Erin and Marty discovering that the Shock Street monsters are actually real. It turns out that some of the monsters they've met were just animatronic robots built for the tour, and the rest were just hallucinations created by Erin and Marty's erratic programming.
- Serial Killer:
- The Mad Mangler, whose modus operandi is that he'll mangle any unsuspecting fool that walks by the lot he inhabits.
- Sweet Sue is a Martian serial killer disguised as a doll, but no one clarifies if she was a serial killer to her own people as well or if she just went after Earthlings.
- Toxic Phlebotinum: A number of the monsters are implied to have been created as a result of exposure to toxic waste. Case in point, there's the Toxic Creep and the Toxic Wild Man.
Andrew Craw/The Headless Ghost
A once normal, if bratty, boy living in Hill House who had his head taken off by the sea captain and was forced to wander the house as a ghost in search of it.
- And I Must Scream: Being made to wander his childhood home for years while unable to see, smell, hear or taste anything must've absolutely sucked.
- Asshole Victim: In his backstory, he abused animals and played tricks on his servants until karma caught up to him in the form of the sea captain's ghost pulling off his head and hiding it.
- Bratty Half-Pint: Before he died, he was a nasty, cruel child.
- Death Equals Redemption: As his appearance in the end would suggest, it seems this horrifying fate made him into a much kinder person.
- Dying as Yourself: His mutilated soul haunted Hill House for years, basically a mindless husk of his living self. He finally becomes a full boy again after his head is found and expresses his gratitude to the kids as he vanishes for good.
- Go Out with a Smile: After the kids find his head, he peacefully thanks them before fading into the afterlife.
- Small Role, Big Impact: He only makes a true appearance at the very end of the book, but it really says enough about his character.
- Took a Level in Jerkass: In The TV episode, he's every bit as petulant and mean-spirited as he was before he became a ghost, and never redeems himself like he does in the book. See Ungrateful Bastard.
- Undeath Always Ends: He's already dead long before the story, but his spirit is finally laid to rest when the kids unearth his head. And if the Goosebumps wiki is to be believed, Seth, another character from the same book, will replace him in the upcoming movie.
- Ungrateful Bastard: In the TV episode, he insults and threatens the protagonists even after they find his head for him.
The original ghost of Hill House and the original owner. He built the house for his young bride, but never got the chance to live in it when he was called off to sea and died a year later. He returned to his home as a ghost long after his wife departed, and spent decades roaming the house searching for her before he killed Andrew Craw and made him take his place as the ghost of Hill House.
- Composite Character: He's combined with Otto the tour guide in the TV show's adaption of the story.
- Disproportionate Retribution: His response to Andrew finding his hiding spot was to rip his head off and hide it somewhere he'd never find it.
- Greater-Scope Villain: He's the one responsible for Hill House becoming a wretched place that destroyed anyone who lived in it. It's taken further in the TV show, with the added reveal that he's actually Otto and still haunts the house alongside Andrew and Seth. He planned to kill Stephanie and make her the newest ghost but was stopped. He's last seen posing as a realtor selling the house to an unsuspecting couple.
- Karma Houdini: He gets away with murdering Andrew in both versions of the story, and the TV show ends with it being clear he's getting more victims.
- The Lost Lenore: Roams the house in search of his deceased wife, Annabelle. Unusual for this plot, he actually died first.
The Abominable Snowman of Pasadena
A Yeti creature discovered in Alaska in the book of the same name. He sleeps in blocks of ice and lives in a cave filled with supernatural snow.
- Adaptational Villainy: He's more or less harmless in the book, but in the 2015 movie, he's straight up antagonistic.
- Attention Deficit... Ooh, Shiny!: The first thing he does upon escaping his book is play with an overhead lamp.
- Bigfoot, Sasquatch and Yeti: Starts off as a Yeti in Alaska, but now technically a Sasquatch living in California.
- Continuity Nod: His Trademark Favorite Food is referenced in the movie when he breaks into a vending machine.
- Expy: He's basically a yeti version of King Kong, complete with the "kidnapped from his exotic land and escapes to go on a rampage bit"
- Fish out of Water: When the protagonists bring him back to sunny Pasadena, he's not too thrilled about being in a warm climate.
- An Ice Person: He produces a strange kind of snow that freezes anything it touches. And he hibernates by encasing himself in a block of ice, like "Dracula in his coffin."
- Manchild: He's very curious and loves sweets. You'd probably wanna hug him if he wasn't a giant brimming with deadly supernatural power.
- Non-Malicious Monster: He's really only dangerous if provoked, and he'll help out if his ice powers have gotten out of control.
- Starter Villain: In the movie, he's the first monster to be released.
- Trademark Favorite Food: He loves trail mix.
- Adaptation Name Change: The Goosebumps Graphix version changes his name to Luis Garcia.
- Badass Adorable: As with Nicole, he manages to brave the frozen wastes of Antartica with only Nicole for company. Not bad for a 12 year old.
- Big Brother Bully: A likely unintentional example: he comes across as rather harsh towards Nicole. She is admittedly kind of a Know it all but she doesn't really mean to be and just has bad social skills, meaning his treatment of her comes across badly. One also gets the feeling he is jealous of her due to her being basically a child prodigy while he's just a normal kid.
- Fire-Forged Friends: In an unusual example, Jordan and Nicole count as this. While he actively dislikes her at first, after their adventure in Alaska where they find the snowman (complete with Nicole saving his life once) they seem to get a long a lot better.
The protagonist Jordan's sister.
- Adaptation Name Change: The Goosebumps Graphix version changes her name to Ana Garcia.
- Annoying Younger Sibling: She annoys Jordan with her know-it-all personality.
- Badass Adorable: She doesn't do any fighting, but is pretty good at surviving in the cold for an 11 year old.
- Covered in Gunge: At one point she is having a squirt gun fight with some neighborhood bullies. She accidentally falls into the neighborhood compost heap and gets covered in slimy decaying plant matter. Jordan sees this about to happen ahead of time but just lets her fall in because he's annoyed with her at the time.
- Foolish Sibling, Responsible Sibling: Responsible to Jordan's foolish.
- Grade Skipper: She's so smart that she skipped fifth grade and got into Jordan's class.
- Hair of Gold, Heart of Gold: She's described early on as having blond hair and, once you get past her more annoying traits she has a pretty good heart as well.
- Insufferable Genius: She's really smart for her age but has pretty bad social skills, which really annoys Jordan.
- Jerk with a Heart of Gold: She actually turns out to be a pretty good person. She helps Jordan when he falls into a hole in Alaska (which is how they find the Snowman), and even seems to feel sympathy for the Snowman when he gets loose (which makes sense when you think about it: He's basically been kidnapped, is likely really hot and uncomfortable, and just wants to find some food and shelter.
The titular shrunken head that Mark receives. It allows him to use the jungle magic his Aunt Benna put in him.
- The Cameo: It makes a small appearance in the movie on the Muglani's staff.
- Magical Incantation: Mark activates it's powers by shouting ""Kah-Lee-Ah!"
- Suddenly Speaking: It doesn't speak until the very end, when it asks Mark to let it tell the part about the tiger.
- Words Do Not Make The Magic: The jungle magic must be placed inside you for the aforementioned words to work.
A renowned magician with real powers, and a foul attitude off stage. Turns out he's got a good reason for this, since he's trapped in the form of a rabbit and needs to appear human with an automated dummy.
- Adaptational Heroism: In the TV show, he doesn't have a foul attitude nor is he a rabbit. Those traits are taken by El Sidney, an evil magician Amazo trapped in rabbit form to stop.
- Anti-Villain: Definitely not a good person (or rabbit) but he's really just angry and antisocial because of his condition. The most evil thing Amazo does is have Tim take his place as stage rabbit, which Tim surprisingly seems to appreciate.
- Baleful Polymorph: He's been transformed into a rabbit by an old rival, and as Tim finds out, he's really ashamed and bitter about his situation.
- Breakout Character: Was similar to Cuddles in that he was prominent in the 1990s merchandise based off the series, and like Cuddles was Demoted to Extra when the series was rebooted by Goosebumps Horrorland. Bad Hair Day has yet to be reprinted.
- Broken Pedestal: Tim, his biggest fan, is so disgusted with his behavior that he steals the guy's magic box and eventually calls him out on his jerkassery. Amazo does make it up to him, though... on his own terms.
- The Cameo: He showed up in the 2000 series book Return to Horrorland and performed a few tricks.
- Decomposite Character: In the book, Amazo is the rabbit, with his human self being a robotic duplicate he uses on stage. The TV episode has Amazo being a human magician, with the talking rabbit revealed to be a separate character named El Sidney.
- Hair-Raising Hare: He's actually not as terrifying as the cover would have you believe, but he's certainly not someone to be trifled with.
- Jerkass Has a Point: Amazo's not a pleasant or friendly critter backstage, but considering he's trapped in a form he hates, with lots of pestering from fans like Tim for his dangerous magic tricks, it's hard to blame him.
The main character
- Ambiguous Disorder: He seems to have something like Asperger's Syndrome or another ASD.
- Gender-Blender Name: Very few males are named "Dana".
- Gentleman and a Scholar: Despite being really smart for his age, he rarely, if ever, acts superior about it
- Nice Guy: He's a nice kid in general, and even cares about the egg monsters despite being grossed out by them.
- No Good Deed Goes Unpunished: He takes the egg monsters to Dr. Grey out of concern for their well being, only to find out Dr. Grey has other plans...
A Mad Scientist who imprisons Dana and the egg monsters from Mars in his lab in order to experiment on them.
- Big Bad: Of Egg Monsters From Mars.
- Bullying a Dragon: This guy not only imprisoned a group of potentially dangerous aliens in his freezer, but he also screams at and threatens the one human they've grown fond of. As you can guess from this picture, it doesn't end well for him.
- Humans Are the Real Monsters: You're led to believe at first that the egg monsters are the antagonists, but they turn out to be good and in fact save Dana from Dr. Grey. Then again, they did essentially rape him in his sleep.
- Hypocrite: Gray imprisons Dana for being in contact with the Egg Monsters. What he doesn't consider is that he's been in contact with them longer than this kid has, and that he wasn't even wearing gloves when taking Dana's specimen.
- Knight Templar: He insists that his kidnapping Dana is so that he can experiment on him for his and the rest of the planet's safety.
- Not-So-Well-Intentioned Extremist: Despite his claims above, he has no problem kidnapping and even murdering an innocent kid to keep his experiment safe, all the while ranting about how Dana ruined his work.
- Villainous Breakdown: He completely loses it when he sees that the egg monsters have merged into a blanket in order to keep Dana warm.
- Would Hurt a Child: After his Villainous Breakdown, he threatens to freeze Dana to death for supposedly ruining his work.
A race of ferocious bear/possum hybrids who play a bizarre game with their victims to choose who gets eaten.
- Absurdly High-Stakes Game: As Ginger says, they play for keeps.
- Always Chaotic Evil: Downplayed, since unlike the Horrors, they actually have some sense of honor.
- Bears Are Bad News: Ginger views "the Teddy Bear's picnic" in a whole new light after this adventure.
- Big Bad Ensemble: Of The Beast From The East.
- Blue-and-Orange Morality: Everything they do is determined by the rules of their strange game, which certainly doesn't help our confused protagonists.
- Calvinball: They don't make up the rules per se, they just hardly define them.
- Cannibal Tribe: We can assume that based on the rules of the game, they eat each other when there are no humans available.
- Child Eater: Losers of the game get eaten, and they will not make exceptions for children. One shouldn't think too much of who else stumbled upon this game...
- Cloud Cuckooland: The neck of the woods they live in is full of oddly-colored plants and Mix-and-Match Critters. It may even be an Eldritch Location, based on Fleg's comment about a path that "leads back to your world".
- Even Evil Has Loved Ones: It's never explicit, but they do seem to care for each other, since Spork is shown keeping watch over an infant beast in the middle of the dangerous game.
- Even Evil Has Standards: The Beasts strictly follow the code of the game, and thus will give their victims another chance should the rules condone it.
- Eye Scream: Gleeb's right eye is missing, leaving an empty socket, which he has a habit of picking at several times through the story. Ginger remarks it's probably from an earlier fight, and that she'd hate to see the loser.
- Genius Bruiser: They're huge, tough monsters that also happen to be skilled with building booby traps and handling wild animals.
- Hulk Speak: The one that appears in the newest video game has very stilted and primitive dialogue. This might be explained by his "Universal Language Translator" malfunctioning.
- Mix-and-Match Critters: Giant blue bears with tails like badgers, and builds like gorillas.
- Proud Warrior Race: That play tag?
- Psychopathic Man Child: Despite initially appearing to be ferocious hunters, their mentality is more like a group of angry, stubborn 3rd graders who refuse to play fair. Judging by the reveal that they're only level two players, they might not even be much older than the kids they terrorize.
- Punch-Clock Villain: The beasts don't play this game out of malice, but because it's ingrained in their culture. Spork even admits it gets boring at times, which gives Ginger a chance to tag him.
- Worthy Opponent: Brutal as they are, they'll still treat you with respect if you prove to be the better player. Good luck with that, though. Ginger's victory came with sheer luck.
Harry and Alex Altman
The main characters of Ghost Camp, Harry and Alex are brothers who're spending the summer at Camp Spirit Moon. As the only non-veteran campers, they find themselves the targets of some... odd pranks by the other kids. For a series that really likes to focus on Sibling Rivalry, the two of them strangely get along quite well.
- Annoying Younger Sibling: Averted with Alex.
- Compelling Voice: Alex has an amazing singing voice for someone so young, and everyone knows it. So, at the end, when Alex's singing is suddenly off-key, Harry realizes it's because Alex is being possessed by Elvis.
- Demonic Possession: Alex ends up getting possessed by Elvis. When Harry realizes this, Elvis begs him not to tell anyone, and the book ends without revealing if Elvis ever left Alex.
- Designated Victim: They're the butt of some disturbing pranks because they're the new kids. And also because they're the only kids who are alive.
- Does This Remind You of Anything?: Lucy revealing to Harry the truth about the camp and begging Harry to let her use his body is disturbing similar to a discussion one would have about engaging in sex, to the point that when Lucy tries to possess Harry without his permission it comes across as a metaphor for sexual assault.
- The Eeyore: Alex can be moody.
- Foolish Sibling, Responsible Sibling: Subverted, in that said roles aren't really needed for the two. While Harry sometimes takes the lead because he's older, he doesn't have to reign in Alex because Alex doesn't act like an annoying pest.
- Mind Rape: Lucy tries this on Harry, Elvis ends up succeeding on Alex.
- Only Sane Man: Harry and Alex both end up being this throughout the majority of Ghost Camp because of how the other campers treat them.
- Puppy Love: Subverted. Harry appears to be heading this way with Lucy, and then she tries to take over his body.
- Sibling Rivalry: Averted. They get along well, which might be because Harry's only a year older than Alex.
Camp Spirit Moon Ghosts
A rustic summer camp the Altman brothers visit. Run by the jovial Uncle Marv, the veteran campers have a rather strange sense of humor and enjoy screwing with Harry and Alex. Unfortunately, they're a lot more twisted than they appear...
- And I Must Scream: Spending eternity trapped in a summer camp? Terrible. Being turned into fog if you try to leave on your own? Holy shit.
- Anti-Villain: They're ghosts who just want to leave the camp so they can try to leave, but they also enjoy pulling sadistic jokes on innocent people and will not take no for an answer if someone refuses to hand their body over.
- Clap Your Hands If You Believe: When Harry and Alex encounter the grotesque forest monster from Uncle Marv's story, they manage to get rid of it by saying they don't believe it exists. They try this on the campers, but it turns out the monster was a trick the campers pulled on them to let their guard down.
- Creepy Child: The campers enjoy pulling such lovely pranks like stabbing their hands, feet, and necks, and pretending to drown.
- Dead All Along: Every single person at Camp Spirit Moon except for the Altmans have been dead for years.
- The Eeyore: Lucy is the moodiest of the campers.
- Freudian Excuse: The campers screw with Harry and Alex because they have virtually no other way to stay entertained, being trapped at the camp for eternity and all.
- Hollywood Tone-Deaf: Elvis has a horrible singing voice. When this is how Harry realizes Elvis is possessing Alex, Elvis promises he'll never sing again if Harry leaves him alone.
- Large and in Charge: Uncle Marv.
- Mind Rape: When you read about Lucy trying to take over Harry's body, it takes on a much more disturbing subtext if you're older.
- Off with His Head!: During a night game of soccer, Harry sees a girl camper's head get knocked off by a soccer ball. Alex tells Harry he saw the same thing.
- Puppy Love: It seems Lucy is going this way with Harry. And then she tries possessing his body.
- Self-Disposing Villain: After cornering the Altmans, the campers and the counselors get into a fight over who gets to leave, turning into a Big Ball of Violence before disappearing... except Elvis.
- Troll: So much. Not just from their pranks but from the vicious way they trick Harry and Alex into thinking they have a way to beat them.
A creature that one day wandered into the home of Gretchen and Clark's grandparents, so they trapped it inside to stop it from wreaking havoc. Unfortunately, when the two kids are left alone they accidentally set the monster free, and must figure out How To Kill A Monster.
- Big Eater: Grandma Rose is, at the very least, smart enough to keep the monster well fed to make sure it doesn't wreck the place.
- Extreme Omnivore: It's able to eat gumbo loaded with household cleaner and rat poison and live. There's just one thing it can't stand the taste of... humans.
- Mix-and-Match Critters: In the books, it looks like a gorilla with green fur and an alligator head, while in the TV show it looks like some kind of mutant dinosaur/chicken hybrid.
- Not Quite Dead: The ploy to kill it with poisoned gumbo only stunned the monster for a little while.
- Plot Allergy: To humans. Just tasting one is enough to make it explode.
- Suddenly Voiced: In the book, it only speaks near the end when it asks if Clark's a human, because it can't eat humans or it'll die.
Two mysterious ghouls with pumpkins for heads. They basically kidnap Drew Walker and her friends, forcing them to trick-or-treat for what might be forever before trying to convert them into pumpkinheads like them. They're also implied to be responsible for the deaths of four missing adults. They're really Drew's friends Shane and Shanna, who were helping Drew prank her enemies Tabby and Lee for all the pranks they've pulled on her. The two are alien shapeshifters... and as they reveal to Drew before they leave, they did kill those four adults. Why? It was dinnertime.
- Big Bad Duumvirate: Of Attack Of The Jack-O'-Lanterns.
- Cool and Unusual Punishment: They make Drew, Walker, Tabby, and Lee trick-or-treat in a neighborhood that gives out huge amounts of candy, and then force them to continue against their will. It's also possible that their allies handing out so much candy is also an attempt to subtly fatten up the four kids for a future meal, especially when the two ghouls force the kids to eat their candy so they have room to collect more.
- Fattening the Victim: With the reveal that they eat plump humans, all the candy they force the kids to get comes across as one method of ensuring this.
- Faux Affably Evil: Friendship to humans does not exempt said humans from the possibility of becoming their dinner, and they have absolutely no issue with threatening Drew despite the fact that she has never done anything to them except be their friend.
- Force Feeding: In order for the kids to have room for more candy, they make them eat what the already have, to the point of vomiting.
- I'm a Humanitarian: Their preferred diet consists of well-fed humans. And they warn Drew they don't make exceptions for friends if she doesn't watch what she eats.
- Karma Houdini: They leave Earth unimpeded after the reveal that they mercilessly killed four innocent people, ate them, and then implied they would do the same to their supposed friend in cold blood if she ever got chubby.
- Losing Your Head: They can actually detach their pumpkin heads at will and make others wear them.
- Plant Person: They appear to be thus but are actually just shapeshifters.
- Playing with Fire: The two main creatures show an ability to breathe fire.
- Theme Twin Naming: Shane and Shana.
The great grandfather of the Martinez family, Nightwing is a powerful vampire lord who derives his abilities from a mysterious substance called "Vampire Breath". Eventually, his grandson accidentally wakes him up from his centuries long slumber. Nightwing only wants to return to his own time, but is willing to involve children in his plans.
- Affably Evil: Aside from being a vampire, he is actually a pretty decent guy, and even saves Freddie's life at some point. Even when he promises to turn him and Cara into vampires, he doesn't seem to realize they don't see it as a good thing.
- Big Bad: Of Vampire Breath.
- Blue-and-Orange Morality: His idea of helping Freddie and Cara is to turn them into vampires so they can live along with him in the castle, since he doesn't know how to send them home.
- Our Vampires Are Different: Mostly follows the Classical Movie Vampire archetype, with the only notable difference being that he needs to drink Vampire Breath in addition to blood.
- Ungrateful Bastard: When Freddie and Cara help him return to his time period, he repays them by refusing to help them get home and promising to turn them into vampires as soon as he finds his fangs. Then again, he genuinely seems to believe that would be doing them a favor. As it is, he claims that he doesn't know how to get them back to their own time, so his refusal isn't necessarily just because he's evil.
- Villainous Rescue: While in his castle, Freddie attempts to escape by a window, only to nearly fall to his death. Count Nightwing ends up saving him in bat form.
- Weaksauce Weakness: He can't feed without his fangs, and he needs Vampire Breath to remind him where he left them.
GwendolynA young girl Freddy and Cara meet while exploring Nightwing's domain, claiming she was a captive of the vampire.
- Decoy Damsel: She passes herself off as a human who's a slave of the vampires, but is really (and quite obviously) a vampire herself and tries to bite the protagonists herself (Book) or take the Vampire Breath to overthrow Nightwing (TV).
- Exact Words: In the book she tells Freddy and Cara that "she knew a way out" from Nightwing's domain. Turns out her interpretation was for her to bite the two.
- Face-Revealing Turn: In the book, she does this when she thinks she's think she's alone with Freddy and Cara revealing herself as a vampire to the two. In the episode, Freddy throws her the Vampire's Breath in a keep away from Nightwing thinking she'll destroy it. Instead she takes some of it for herself and turns around, now sporting fangs.
- The Starscream: In the TV episode, she's shown to be a lowly minion of Nightwing and plots to take the Vampire Breath for herself and overthrow him.
- Undead Child: A young kid vampire.
- What Happened to the Mouse?: In the book, Nightwing and she get into a fight over who will feed on Freddy and Cara. Freddy and Cara decide to use the oppurtunity to run as they do. Later, Nightwing confronts them again with no mention of what happened to Gwendolyn though it's implied he either killed her or she ran off. In the TV episode, Nightwing turns her into a roach.
- "On Friday and Saturday I ran home a disgrace, a loser, a creep. Tonight I ran home a winner. A champion! A genius!"
The nerdy protagonist of Calling All Creeps! who mistakenly ends up as the leader of a group of reptilian aliens who want to Take Over the World.
- All of the Other Reindeer: He's actually surprised when nobody at school picks on him at lunch the day after he writes that message in the newspaper.
- And Then John Was a Zombie: After spending half the book trying to save his classmates from being turned into creeps, he decides that if you can't beat them, join them.
- Being Good Sucks: He tries his hardest to save the school from the Creeps, only for them to blow him off or continue to pick on him. Eventually, he decides they aren't worth it.
- Big Bad Slippage: Ricky inadvertently lands himself as the leader of a squadron of monsters out for world domination. He tries all he can to stop them from the inside, but it's not helped by his ungrateful peers. Then he learns just how easy it is to turn the other cheek, and embraces his new power.
- Bully Magnet: He gets bullied all the time. By the end of the story, nobody note is surprised when he snaps and joins the Creeps.
- Butt-Monkey: He's constantly picked on by his classmates and by Tasha, the head of the school newspaper. Let's just say his FaceHeel Turn at the end isn't entirely out of nowhere.
- Cassandra Truth: When he attempts to inform his parents, teacher and classmates of the Creeps' plan, they either make fun of or ignore him.
- Didn't Think This Through: He didn't consider the very plausible possibility that Tasha likely edits the newspaper and would notice he put her phone number there.
- Embarrassing Nickname: "Sicky Ricky" and "Ricky Rat".
- FaceHeel Turn: When he learns that his classmates will be his slaves once they've turned into Creeps, he decides that if you can't beat 'em, join 'em.
- Freudian Excuse: For his FaceHeel Turn. The relentless bullying he faced from his classmates led to him deciding to let them perish and joining the Creeps.
- Getting Crap Past the Radar: His revenge plot against Tasha is more or less the same idea as writing "For a good time, call..." on the bathroom wall.
- Mistaken for Badass: After his revenge plot goes wrong, the Creeps assume he is their leader.
- No Sympathy: Doesn't get a bit of sympathy from anybody except Iris. Is it any wonder that he eventually snaps?
- Revenge Before Reason: He's so eager to get revenge on Tasha that he forgets that as the head of the newspaper, she probably checks over her work and would've noticed his message. Her edit results in the Creeps mistaking him for their Commander.
- Token Good Teammate: He finds himself as this after being coerced into the Creeps. Unfortunately, this goes right out the window when he finds Evil Feels Good.
- Who's Laughing Now?: When he does his FaceHeel Turn.
- Woobie, Destroyer of Worlds: He certainly made everyone who picked on him regret it.
- "Humans are the past. Creeps are the future!"
An unpleasant group of lizard-creatures masquerading as human school bullies.
- Adapted Out: Jared doesn't appear in the TV episode.
- Aerith and Bob: Their names: Jared, Brenda, David... Wart?
- Aliens Are Bastards: We don't know just what they are, but they fit every other criteria.
- And Then John Was a Zombie:The entire student body by the end of the book, including Ricky.
- Assimilation Plot: Creeps are created when special "identity seeds" are consumed by humans. The main four plan to disperse these seeds among the student body.
- The Bad Guy Wins: A rare example that benefits the protagonist.
- Big Bad Ensemble: Of Calling All Creeps!
- Blue-and-Orange Morality: Like most creatures in the series, the Creeps have very twisted and strange customs.
- Child Soldiers: The main four, though it's unclear how old they are.
- Crazy-Prepared: Ricky "accidentally" drops their bag of seeds in an attempt to escape them? No worries, they've got a spare one on hand.
- Evil Phone: How they contact Ricky.
- Gang of Bullies: As humans, they solely exist to make Ricky as miserable as possible.
- Hidden Heart of Gold: It's hinted that they're only acting like bullies to blend in with everyone else. Of course, they're still planning an alien invasion...
- Jerkass: They take every opportunity to get Ricky fired from the newspaper.
- Kids Are Cruel: Also in their human forms, along with the rest of the school who bullies Ricky.
- The Lad-ette: Brenda, the only female, is no less ferocious than her comrades.
- Lizard Folk: Huge, purple lizard/raptor kids. The cover makes them look oddly adorable.
- My God, What Have I Done?: They're mortified when they "discover" that their Commander is the one they had been bullying, and apologize to Ricky for how they treated him.
- Pet the Dog: Their loyalty toward Ricky, their supposed leader, seems surprisingly genuine. At the very end, they give him the extra push to take revenge on the cruel student body as he's being mocked.
- The Smurfette Principle: Brenda's the only female member of the initial group of Creeps.
- Take Over the World: Their plan is basically "today the middle school, tomorrow the world".
- Teens Are Monsters: Both figuratively and literally, they're eighth graders who love to torment Ricky and are revealed to be the Creeps calling Ricky.
- What Happened to the Mouse?: If Ricky isn't really their Commander, then where's the real one?
- "That was your last chance. You didn't deserve it. You're just a creep. Why do you think all the kids call you Ricky Rat? Because that's what you are—a little rodent!"
The head of the school newspaper, and the bane of Ricky's existence.
- Adaptation Dye-Job: A redhead in the book, her hair is black in the TV adaptation.
- Alpha Bitch: She hates all sixth-graders, and treats Ricky like a bug she wants to squash. She gives him bad stories that she doesn't publish anyway, calls him names, and threatens to have her rich father sue him when his camera gets wrecked, even though it wasn't Ricky's fault.
- Asshole Victim: She's the first one Ricky gives a cookie to, and it's impossible to feel bad for what's about to happen to her.
- The Bully: She viciously belittles and humiliates Ricky at every turn, even telling him to his face that no one at all likes him. When he's trying to warn everyone not to eat the cookies, she leads the entire school to hurl abuse at him.
- Frivolous Lawsuit: When her father's camera is accidentally wrecked when Ricky is using it, she threatens to have him sue Ricky's family over it.
- Hate Sink: She is clearly meant to be as detestable to the reader as possible. The Creeps might be acting like bullies in order to pass for normal students, but she has no excuse whatsoever.
- Jerkass: She's as horrible to Ricky as possible for no reason other than thinking she's superior to sixth graders like him.
- Jerk with a Heart of Jerk: After firing Ricky from the newspaper, she agrees to give him a second chance, but does it in the most backhanded way possible, telling him repeatedly that she only went to him as a last resort. She quickly finds an excuse to fire him anyway.
- Made a Slave: At the end of the book, along with the rest of the students.
- Misplaced Retribution: She fires Ricky from the newspaper for grievances that were his bullies' fault. When Jared, Brenda, David and Wart cause Tasha's computer and camera to get destroyed, she immediately blames Ricky and refuses to listen to his attempts to defend himself.
- "The Reason You Suck" Speech: She gives a pretty brutal one when firing Ricky for the second time.
- Smug Snake: She rubs it in Ricky's face when she foils his edit to the paper.
A new student who enters Ricky's class, and makes friends with him.
- Love-Interest Traitor: Subverted. Initially she appears to be on the side of the Creeps, even pretending to be their commander's second-in-command, but she's really just a genuinely nice girl who only wants to help out. Amazingly, she manages to fool the Creeps, who don't ask her to change to prove it.
- Nice Girl: The only character in the entire book to show any sympathy for Ricky's plight.
- Race Lift: Described in the book as having a round face, blue eyes and blond hair, she's Filipino in the TV adaptation.
- What Happened to the Mouse?: In the book, she inexplicably disappears during the last act and isn't present when Ricky tries to prevent the students from eating the spiked cookies that turn them into Creeps. In the TV adaptation, she begs Ricky not to go through with the Creeps' plan after he finally snaps; it's not indicated if she also gets turned.
A monster accidentally created by two sorcerers who could only trap it in the guise of a snowman. The Snowman terrorizes the mountain village of Sherpia but is held back in an ice cave by the power of a man named Conrad.
- And I Must Scream: Conrad enchants the snowmen in the village to come alive, attack the demon, and them somehow manage to freeze it in the walls of the ice cave.
- Big Bad: Of Beware, The Snowman.
- Generic Doomsday Villain: Despite being clever enough to trick Jaclyn into freeing it, it doesn't have much character or motive at all beyond being a giant evil beast that terrorizes the village.
- Gone Horribly Wrong: It was created by accident thanks to the reckless spell casting of a pair of sorcerers.
- Luke, I Am Your Father: It tries to convince Jaclyn that he is really her father, trapped in the snowman form by accident thanks to her mother and aunt. Unfortunately, because Jaclyn had begun to distrust her aunt ever since they moved to Sherpia, she believes the snowman and frees him.
- Manipulative Bastard: It plays off the distrust Jaclyn has developed with her stern Aunt Greta and gets her to seriously consider that it might be her Disappeared Dad. When she does free it, the Snowman decides to get rid of her.
- One-Winged Angel: The Snowman's current appearance is not its true form. After Jaclyn is tricked into freeing it, we find out its true form is like that of a Minotaur with red, crusty scales.
- Snowlems: Version III.
- Ungrateful Bastard: It still tries to kill Jaclyn even after she frees it.
- Was Once a Man: It claims to be Jaclyn's father. It's not.
- You Have Outlived Your Usefulness: It "thanks" Jaclyn for freeing it by trying to kill her.
A kid who finds a magic potion and instructions on how to fly, and hopes to use his newfound ability to finally stick it to his rival and win the heart of his crush.
- Alliterative Name: Jack Johnson. Along with his love interest, Mia Montez.
- Always Someone Better: Is in a constant competition with Wilson for Mia's heart.
- Blessed with Suck: He discovers that flying isn't so great after all when his fame and glory begin to overwhelm him. Subverted by the ending. He grows to enjoy his powers, but only as long as he can keep a normal life.
- Butt-Monkey: Every time it seems like he's finally going to beat Wilson at something, the rug gets yanked out from under him.
- Celebrity Is Overrated: He purposely loses the race at the end so that he can get his life and friends back, while Wilson is stuck with the burden of celebrity.
- Earn Your Happy Ending: By giving up his feud with Wilson, he returns to a relatively normal life, gets to keep his powers in secret, and ultimately spend more time with Mia.
- Easily Forgiven: Mia wasn't mad at Jack for leaving her party or not coming up with the book to teach her how to fly.
- I Just Want to Be Normal: Throughout the book when he realizes that fame isn't all it's cracked up to be. At the end, he feigns losing the ability to fly to regain his normal life.
- Screw This, I'm Outta Here!: He abruptly leaves Mia's birthday party after having his shorts ripped in a game of Twister and Wilson one-ups him several times.
- Sore Loser: Though more for the fact that Wilson keeps rubbing his victory in his face rather than the actual loss of the game itself.
- Super Serum: The flying formula grants both him and Wilson the power of flight. Later, the government seeks it for military use, which may be a clue as to why the creator hid it in an abandoned beach-house to begin with.
- Yank the Dog's Chain: Even when Jack is so close to beating Wilson, the latter somehow manages to prevail in the last second. Subverted at the end when he gets his normal life (as well as the girl he likes) back and Wilson is stuck in the burden of publicity.
Jack's rival. An arrogant kid who seems to be the best at everything.
- The Ace: He effortlessly creates balloon animals in seconds, has a top-of-the-line bike and roller blades, we could go on forever. Even his dog is better than Jack's.
- Anything You Can Do, I Can Do Better: If he and Jack are both chewing gum, he insists that the bubbles he blows are bigger and rounder than Jack's. If they aren't, he pops Jack's bubble all over his face.
- Celebrity Is Overrated: His pursuit of fame and glory eventually causes him to move away and lose his social life, while Jack stays behind, returns to normal, and gets the girl.
- Competition Freak: To a point where he treats even mundane activities such as a size of a hot dog as a competition.
- Hate Sink: His existence pretty much revolves around how much of a competitive asshole he is.
- Jerk with a Heart of Gold: He seems to genuinely want to please Mia, even if his tactics are inscrutable. In the end, the real reason he loses is because he can no longer be with her.
- The Rival: He competes with Jack for everything, especially Mia's affections.
- Smug Snake: In the end, his need to make everything a contest and to be the best at everything causes him to lose his social life and his chances with Mia.
- Unsportsmanlike Gloating: He will never hesitate to remind Jack how much of a loser he is compared to him.
Jack Johnson's love interest, and the main source of his rivalry with Wilson.
- All Girls Want Bad Boys: Subverted - although she seems impressed by Wilson at first, she chooses the more down-to-earth Jack in the end.
- Alliterative Name: Mia Montez.
- Ms. Fanservice: In-universe, she's considered the cutest girl at Jack's middle school.
- Pink Means Feminine: She wears pink hearts in bracelets and necklaces.
- Satellite Love Interest: She mostly exists to fuel Jack and Wilson's rivalry, although she also has elements of Manic Pixie Dream Girl.
- Significant Birth Date: Her birthday is on Valentine's Day, which definitely explains her love for hearts.
Crystal and Cole
Siblings who live in the farming town of Goshen Falls. Their lives become an unending nightmare when they catch the ire of Vanessa, the local witch. As revenge for knocking into her and making her drop her groceries (without apologizing) she curses the two by uttering the phrase Chicken Chicken. The siblings are considered to be two of the biggest Woobies in the whole franchise because of how disproportionate their suffering is.
- Annoying Younger Sibling: Cole enjoys pranking Crystal as well as Vanessa.
- Asshole Victim: Cole enjoyed pranking Vanessa with a few other kids and generally being obnoxious and annoying before he got cursed to become a chicken.
- Baleful Polymorph: The curse Vanessa put the two through is slow and agonizing, and also makes them act like chickens against their wills.
- Body Horror: They both grow feathers which are painful to remove, Crystal's lips become hard and bumpy like a beak, and they can feel their eyes move to the sides of their heads while their hands become claws and their teeth slide back into their gums. The book goes into perfect detail about how long and excruciating this process is.
- Butt-Monkey: But exaggerated to such a degree that it makes Chicken Chicken uncomfortable to read.
- Can't Get Away with Nuthin': Chicken Chicken ends with Crystal and Cole being cursed again by Vanessa simply because Cole let out a loud burp without saying "excuse me" and Crystal laughed at it.
- Crying Wolf: Cole starts out as an obnoxious brat who pulled off a number of pranks on Crystal claiming it was Vanessa's fault. After Cole humiliates himself at choir practice by clucking like a chicken, he tries to tell Crystal he really couldn't stop but at that point Crystal's sick of listening to him. It's not until her lips become a beak and Cole grows feathers does she believe him.
- Foolish Sibling, Responsible Sibling: Crystal is the responsible to Cole's foolish, disapproving of her brother's pranking of Vanessa.
- Nice Girl: Part of what makes Crystal's suffering so hard to read is, unlike her brother, she's not a jerk and she's one of the few kids in Goshen Falls who doesn't think pranking Vanessa is funny.
- No Good Deed Goes Unpunished: Crystal walked into Vanessa because she was too busy trying to stop Cole and Anthony from killing each other over a bad joke.
- Not Now, Kiddo: Their parents fail to notice that their children have suddenly grown feathers, and that their daughter's lips have turned into a beak. In fact, her mother just assumes Crystal needs chapstick.
- The Prankster: Cole. He even pranks Vanessa with a few other kids by flooding her mailbox.
- "The Reason You Suck" Speech: Crystal delivers one to Cole after the choir practice fiasco, mistakenly thinking he messed up on purpose and declaring how sick she is of his awful sense of humor. If only Cole actually had been joking...
- Slow Transformation: Into chickens.
- You Are What You Hate: The two absolutely can't stand chickens and hate that their parents moved to Goshen Falls just so they could farm them, which makes their transformations all the more horrible.
A witch who was the main villain of Chicken Chicken. She curses two children into slowly, and painfully, transform into actual chickens because they made her drop her groceries by accident.
- Berserk Button: Don't ever be disrespectful or show bad manners around her. Seriously, don't. Don't. DON'T.
- Big Bad: Of Chicken Chicken.
- Bitch in Sheep's Clothing: She seems like a nice enough (if a bit weird) woman at first, but in reality is a sadistic tyrant with no qualms about doing horrible things to anyone who offends her, even unintentionally.
- Dark Is Evil / Evil Wears Black: She dresses entirely in black, and it doesn't get much more evil than torturing children.
- Death Glare: Crystal describes feeling like she's been stabbed by an icicle with the way Vanessa looks at her after they knock over her groceries.
- Disproportionate Retribution:
- And how. The torture she puts Crystal and Cole through is totally unwarranted, even if they knocked her over, and the only reason she didn't curse their friend was because he gave an offhanded apology as he was running away. Her actions made Chicken Chicken turn out to be one of the most despised entries in the series.
- It gets even worse since Crystal truly was blameless in the whole mess, as she didn't notice Vanessa leaving the grocery store because she was trying to stop Cole and Anthony's fight. And Crystal's narration makes it clear she and Cole were terrified because Vanessa looked like she was going to murder them and she cursed them before they could even offer to help!
- Etiquette Nazi: She's so obsessed with manners that she puts Crystal and Cole through an excruciating transformation into chickens for the crime of knocking her over without apologizing. And then again at the very end for burping without saying "excuse me".
- Faux Affably Evil: She laughs at Crystal and Cole's predicament as they try to get her attention only after they've fully turned into chickens. And then she "sadly" states she can't do anything now, even if they apologize. This turns out to be a complete lie, as it takes Crystal writing a thank you note for trying to teach her and her brother manners for Vanessa to undo the spell in a few seconds. She then curses them again when they belch without saying "Excuse me."
- Harmful to Minors: Crystal and Cole are implied to not be her only victims.
- Hate Sink: One of the most reviled characters in the entire franchise, and with good reason. Unlike most other supernatural villains, there's nothing remotely entertaining or sympathetic about her, being more or less a petty, child-abusing disciplinarian with magical powers. A rare case of the books' main villain being a Hate Sink.
- Here We Go Again!: When Crystal and Cole burp loudly without saying "Excuse me," Vanessa says "Pig, Pig."
- Humans Are the Real Monsters: Despite being a normal (if spellcasting) human she is justifiably considered one of the most vile and destestable villains in the series.
- Hypocrite: For all her obsession with manners, it was very rude of her to laugh at and mock Crystal and Cole when they came to her begging for help.
- Insane Troll Logic: When the kids finally confront Vanessa she expects them to thank her for "teaching them a lesson" by horribly torturing them mentally and physically. What?
- Karma Houdini: She gets away with cursing Crystal and Cole twice.
- Knight of Cerebus: So Chicken Chicken is a book about a couple of kids who're slowly turning into chickens. Sounds like another goofy entry in the Goosebumps franchise. That is until we see just how horribly slow and painful Crystal and Cole's transformations are, how their lives are ruined, and how Vanessa takes so much pleasure in seeing them suffer there's no longer anything funny about this book. And all because they made her drop her groceries and didn't apologize.
- Knight Templar: Again, she thinks she was completely justified in putting a horrible curse on some kinds just for bumping into her. One can only wonder if anyone who cuts her off in traffic gets turned into a frog or something..
- Misplaced Retribution: She honestly had more of a right to be mad at Cole and Anthony than Crystal, since the two boys had pranked her a few days before and the reason the three bumped into Vanessa was because Cole and Anthony were fighting. Crystal was trying to pull the boys apart and bumped into Vanessa by accident.
- Never My Fault: Vanessa says she had to teach Crystal and Cole a lesson because they made her drop her groceries, didn't help and didn't apologize to her. She doesn't get the reason the siblings didn't help is because the Death Glare she gave them was so terrifying they were afraid to go near her, and they ran away without apologizing because she cursed them before they had a chance to. While she did have some right to be mad, if she had controlled her temper the kids might've offered to help her.
- Obliviously Evil: Perhaps the most horrifying thing about Vanessa is the fact that she sees nothing wrong with her monstrous methods. Compared to the likes of Slappy or the Masked Mutant, she isn't the least bit self aware of her evil, acting like she has the moral high ground the entire time. Another instance where this actually makes a villain ten times more despicable.
- Pet the Dog: Transforming Crystal and Cole back into humans and giving them soda.
- Wicked Witch: One obsessed with good manners.
- Would Hurt a Child: She subjects them to horrific torture for the slightest trouble.
The protagonist of Don't Go to Sleep! He's tired of being bullied by his older siblings and getting the worst of everything, including his tiny room in the attic, so he decides to move into the guest room against his mother's consent. This leads to him waking up as someone else each time he falls asleep.
- The Baby of the Bunch: Something he resents, since his mother expects him to look up to his younger siblings since they're in charge of taking care of him when she's busy, when in reality they try their hardest to make him miserable.
- Baleful Polymorph: In two of his realities, he wakes up as a huge green monster and as a squirrel.
- Be Careful What You Wish For: Twice. He wishes he wasn't the youngest so he had more stuff to do, only to wake up with as the oldest child and realize it's not much better. He also tries to convince his mother to let him sleep in the guest room, and she does... at the end of the book, after he learns what happens when you fall asleep in it.
- Butt-Monkey: He hates getting the worst of everything in his life due to how his siblings and mother treat him.
- Cassandra Truth: When he tries to explain to his teacher that he was twelve yesterday and woke up as a sixteen-year-old.
- Circus Brat: In one of his realities, he's the member of a circus family and the star of the show.
- Disappeared Dad: His father died when he was a baby.
- Plot-Relevant Age-Up: The first time he goes to sleep, he wakes up as a sixteen-year-old when he used to be twelve.
- Took a Level in Cheerfulness: At the end of the book, where he learns to appreciate the life he has after all the alternate realities he was forced through.
- The Un-Favourite: His mother takes Greg and Pam's side whenever they torment him, believing they're wonderful siblings who take good care of him.
- Ungrateful Bastard: You'd think he'd be much happier with a mother who actually treats him better than his actual mother, a father in his life, and a cat who doesn't hate him during his second reality warp, not to mention no siblings to pick on him.
- Unwitting Instigator of Doom: By falling asleep in the guest room, he inadvertently changes the laws of reality each time he wakes up. This is why the Reality Police decide they have to put him to sleep forever.
A girl who keeps appearing in the various alternate realties Matt goes to, she turns out to be part of the "Reality Police".
- Adapted Out: She's not present in the TV episode.
- Bitch in Sheep's Clothing: Pretends to befriend Matt, but secretly is working with the two thugs who keep showing up (and who are also Reality Police Officers).
- Good Cop/Bad Cop: The good cop to her colleagues' bad cop - friendly, gentle and calm.
- Inspector Javert: She's not really evil, she just wants to stop Matt from irrevocably damaging the time-space continuum due to him switching universes every time he sleeps. She doesn't even really want to hurt him, just to put him into some sort of permanent sleep/coma.
- Punch-Clock Villain: Both she and the two punks are just doing their jobs to keep reality intact.
- Rabid Cop: She and the other two want to put Matt to sleep permanently, to stop him from ruining reality. Oddly at the end Matt just goes to sleep in his normal bed and the dimension switching stops but they never think of just having him try that.
Greg and Pam Amsterdam
Matt's older brother and sister.
- Adaptational Nice Guy: While not really considered "nice", Greg and Pam are nowhere near as much of ruthless bullies towards Matt in the TV adaptation as they were in the novel.
- Annoying Younger Sibling: In the reality where Matt is sixteen and they're younger, they pester him just as much as when the roles were reversed.
- Big Brother Bully: They constantly gang up on Matt and tease him for being a geek.
- Circus Brat: Along with Matt, they're members of the circus family in one of the alternate realities.
- Promotion to Parent: With their father dead and their single mother working two jobs, they have to look after Matt while their mother is busy, though they do a horrible job of it.
- Teens Are Monsters: They make sure that Matt lives as miserably as possible and torment him in cruel ways, such as putting the family dog on his bed prepared to bite him while he's asleep.
The protagonist of The Blob That Ate Everyone. A boy who likes writing scary stories and has a Blob Monster in one of his stories come to life with a magic typewriter.
- Author Avatar: Zackie wants to be a famous horror writer when he's older. Guess what R.L. Stine's profession is?
- Horrible Judge of Character: He still thinks Adam's a great guy even though the latter has not only made fun of his stories, he throws an ant at him (which Zackie barely dodges), stuffs a mouse down his shirt, and even scares him by sneaking up on him. It has readers questioning whether he should've brought Adam back or not.
- Ironic Fear: Despite being an avid horror writer, Zackie is basically afraid of a lot of things.
- My God, What Have I Done?: When the story he writes on the typewriter about a blob destroying the town comes true.
- Skewed Priorities: Right after Adam types in that the blob monster was waiting in Zackie's basement for fresh meat, Zackie is more upset over the fact that Adam ruined his story rather than the possibility that the blob monster could be down the basement after all since everything typed with the typewriter comes true. Granted, the sentence Adam typed in didn't actually come true, but still...
- Why Did It Have to Be Snakes?: He's afraid of so many things, such as mice, the dark, big dogs, bees, the list just goes on...
- With Friends Like These...: His friend Adam constantly makes fun of his stories and Zackie himself. Averted with his friend Alex who is supportive of his stories and tells Adam to lay off on him.
The Blob That Ate Everyone
From, well, The Blob That Ate Everyone. It's a giant, pink blob creature that devours everything in its path. Originally just a reoccurring character in Zackie Beauchamp's horror stories, the blob monster comes to life thanks to the magic typewriter Zackie found. The blob monster is actually the writer of the story.
- Author Avatar: The blob monster in the main story is one for the blob revealed to be writing the main story.
- The Bad Guy Wins: A friend of the blob monster suggests he change the ending so that Zackie and everyone else gets eaten. However, subverted as they see the blob as the hero.
- Blob Monster: Who'd have thought?
- Extreme Omnivore: It eats anything and everything in its way.
- Generic Doomsday Villain: Invoked. Zack doesn't write it as anything other than what its name entails.Than turned upside down by the twist ending, which reveals the blob is the real protagonist and we're just seeing things from the POV of a side character.
- Kill 'Em All: In the new suggested ending, the blob is successful in eating everyone.
- Villain Protagonist: The twist being that the Blob is the real main character, and Zack and everyone else are just the pesky humans he devours.
- Your Mind Makes It Real: Zackie figures out that he brought the blob to life, not the typewriter, and uses this power to think the blob out of existence and undo all the damage it did. This gets subverted when it turns out everything that occurred was being written by the blob.
- "Why do I always do that? Why do I always get nervous and start off on the wrong foot with people?"
The protagonist of The Curse of Camp Cold Lake. An exceedingly awkward girl who tries to fake drowning after making a bad start at camp, this ultimately results in having a ghost girl insisting she wants Sarah to die for real so they can be friends forever.
- All of the Other Reindeer: She struggled to make friends even before arriving at Camp Cold Lake. At camp, she's shunned and ostracized by the other campers to the point where she eats breakfast alone and no one is willing to be her canoeing partner.
- Ambiguous Disorder: One can infer that she has social anxiety or even some sort of developmental disorder, due to her difficulty with social interaction and having meltdowns over things like having to sleep in a top bunk by the window.
- Be Careful What You Wish For: She desperately wants friends and pretends to drown to gain them. This results in her getting constantly stalked by a murderous ghost who wants nothing more than to be her friend.
- Butt-Monkey: Mainly because she's so awkward that it's hard for her not to get the short end of the stick. She quickly becomes the camp laughingstock.
- Cassandra Truth: The counselors assume she's imagining things due to shock when she keeps insisting she saw a ghost.
- Death by Irony: She pretends to drown herself in order to make friends. It's heavily implied at the end that she's going to die for real, at the hands of a ghost who wants to be friends with her.
- Didn't Think This Through: Pretending to drown was a cry for attention, which didn't make Sarah any more popular at first. Plus she didn't think about the very much real possibility that she could stay down too long and actually drown.
- The Dog Bites Back: When she puts spiders in Meg and Briana's beds to get back at them for their pranks.
- Don't You Dare Pity Me!: She has this reaction to her brother's attempts to help her.
- Easily Forgiven: When her bunkmates decide to give Sarah a second chance, she is absolutely fine with making a fresh start, despite her bunkmates having pretended to do that before in order to stick a snake down her back. She also agrees to go canoeing with Jan even though last time she did so, Jan tipped the canoe over.
- Eating Lunch Alone: Right after she puts spiders in Meg and Briana's beds, she's promptly shunned and sits at the table eating breakfast alone.
- Fish out of Water: Her parents force her to attend a water sports camp, where most of the activities don't appeal to her due to disliking sports and being a weak swimmer.
- Foolish Sibling, Responsible Sibling: Sarah is the Foolish to her brother Aaron's Responsible, if only because despite being younger, he is far more mature and social than she is.
- Green-Eyed Monster: Implied, since her ungrateful attitude towards her brother is less out of malice and possibly more out of envy of the fact that he's far more social and level-headed, which causes her insecurity to get the better of her.
- I Just Want to Have Friends: Aside from pretending to drown to win sympathy and gain friends, she's so happy to finally have friends that she immediately forgives her bunkmates when her plan works and they offer her a fresh start, even though last time they apologized, it was a trick to put a snake down her back. Ironically, Della wants Sarah to be her friend, but even when Sarah thinks she's died and there's nothing to stop her from befriending a ghost, she refuses.
- Innocently Insensitive: When she accidentally insults Meg's height due to speaking without thinking.
- Jerkass Ball: While she's nice for most of the book, she becomes a massive jerk towards her brother every time he tries to help her out.
- Killed Off for Real: The book ends with Briana about to kill her with a snake, with her seemingly having no way to escape.
- Ms. Vice Girl: She's an overall nice person whose awkwardness sometimes makes her act selfishly and stupidly.
- Nice Girl: Aside from her awkwardness, she's rather nice and forgiving.
- No Social Skills: Within the first few chapters, Sarah's selfishness and awkwardness has alienated her bunkmates - taking the bed Briana had already claimed, unintentionally insulting Meg's height and accidentally revealing Jan's asthma to the camp.
- Not So Different: Sarah and Della are both desperate to have friends and shunned by the people they try to make friends with, and do crazy things to gain friends. Sarah pretends to drown to make everyone feel sorry for her and Della tries to kill Sarah to make her her buddy.
- Shrinking Violet: Her shyness combined with No Social Skills makes her hopeless at making friends.
- Too Dumb to Live: Her attempt to make friends by guilt tripping the campers by pretending to drown you can guess how that turned out.
- Ungrateful Bitch: She is rather mean to her brother when he's just trying to help her, but her frustration at how much more sensible and good at making friends than her he is despite being younger is understandable.
- "I need a buddy. Everyone at Camp Cold Lake needs a buddy."
Once a normal young girl staying at Camp Cold Lake, Della grew tired of the constant safety rules and became homesick. She attempted to swim across the lake to leave camp, but she drowned. Now her lonely spirit roams the camp, desperate for a buddy to take her to the afterlife. She actually tried to leave by going through the woods, but was bitten by a rattlesnake. She made Sarah Maas think she drowned as part of a ploy to lure her into the woods and kill her there.
- Affably Evil: She's rather friendly and welcoming when she first meets Sarah and is really just a relatively normal girl who desperately wants a friend.
- And I Must Scream: Her ghost spent years wandering the camp, unable to leave the mortal plane.
- Anti-Villain: A little girl who is willing to do anything to make a friend, even murder.
- Ax-Crazy: Veers more and more into this after Sarah rejects her, even trying at one point to decapitate her with the propellers of a motorboat.
- Barred from the Afterlife: She's unable to proceed to the afterlife without a buddy.
- Big Bad: Of The Curse Of Camp Cold Lake.
- Broken Bird: Being trapped for years in a place you hate and getting rejected by those you want as friends will really do that.
- Creepy Child: From the way she stalks Sarah everywhere and constantly cajoles her to be her buddy for life, calling her this is a massive understatement.
- Cute and Psycho: When she's not trying to stalk and kill you, she's actually rather friendly, giving Sarah a coat when she was cold.
- Cute Ghost Girl: She's just an awkward, friendly ghost girl looking for a new buddy, even if it means resorting to murder.
- Despair Event Horizon: After Sarah makes her refusal clear, Della wails in misery and sinks into the ground.
- Distaff Counterpart: She could be considered this to Keith from I Live In Your Basement since both are Creepy Children who stalk the main protagonists who each got over a near-death experience at an attempt to befriend them.
- From Nobody to Nightmare: That nightmarish lake ghost on the cover? Used to be just a bored young camper who got into a terrible accident. However, as Della is described as looking like a normal girl, just transparent, it's more possible that the rotten corpse on the cover is the remains of Sarah's body after being killed by Briana.
- Go Mad from the Isolation: The years spent wandering the campgrounds with little to no human contact haven't done any favors for her sanity.
- I Just Want to Have Friends: More specifically, she wants a "buddy" to join her in the afterlife.
- Manipulative Bitch: Pulls off a vicious gambit where she makes Sarah terrified of the water by pretending to have drowned, so that she can find her when she least suspects it.
- Tragic Villain: Unlike many other antagonists, Della clearly resents being a monster and will do anything to escape it.
- Used to Be a Sweet Kid: She was an utterly normal young girl who perished in a tragic accident. The years spent stuck haunting the campgrounds where she died have done a number on her sanity, though.
- Woobie, Destroyer of Worlds: Arguably the most clear cut example in the entire franchise.
- Yandere: Brushing off her affections is a very bad idea.
Jan, Meg and Briana
Sarah's bunkmates. When she accidentally offends each of them, they ensure that her camp experience is as miserable as possible.
- Barred from the Afterlife: Like Della, Briana cant proceed to the afterlife without a buddy, and disagreed with being Della's buddy simply because she didnt like her, probably because she killed her.
- Bitch in Sheep's Clothing: Zigzagged with Briana. She starts off being cruel to Sarah, and later makes friends with her and saves her from Della only to try to kill Sarah with a snake after revealing she also needs a buddy as she turned into a ghost when Della killed her last year. Its likely she only apologized to Sarah so she'd be more willing to be her buddy.
- Dead All Along: Briana when it's revealed that she's a ghost.
- Disproportionate Retribution: While Sarah may have gotten off to a bad start with them, the girls drastically overreact to her minor and inconsequential mistakes. They team up to bully her in ways like pretending to be nice just to put a snake down her back, and at one point, Jan even tips the canoe she and Sarah are in over and leaves the latter to drown while knowing she's bad swimmer, just because Sarah accidentally revealed she had asthma (which in a way was kind of doing Jan a favor, since keeping her condition a secret could've easily put her health at risk).
- Gang of Bullies: They relentlessly bully Sarah together after she accidentally offends each of them.
- Jerkass Has a Point: While their treatment of Sarah and overreaction to her minor misdeeds was cruel and uncalled for, she did do things like force Briana to switch bunks with her and ruin her and Meg's plan of sleeping close to each other, kind of insult Meg's height and reveal Jan has asthma, which prevented her from going on the canoeing trip she was looking forward to.
- Laser-Guided Karma: When Sarah puts spiders in Meg and Briana's beds after they pretend to befriend her as a ploy to put a snake down her back.
- Pre-Mortem One-Liner: From Briana: "You'll be my buddy forever..."
- Token Minority: Briana is African American and wears cornrows.
- Took a Level in Kindness: They feel bad about the way they've treated Sarah and offer her a genuine fresh start after she pretends to drown.
- Adaptational Villainy: Even with the twist of him being a human, he's still nice enough by the end of the book. The TV episode ends with him and his family ganging up on Brent.
- Black Sheep: Unlike the rest of his family that likes science, he likes science fiction.
- Crying Wolf: Partly due to being really into science fiction and having an overactive imagination, his parents are even more unlikely than usual to believe him about Brent.
- Foolish Sibling, Responsible Sibling: The foolish to his brother Simon's Responsible.
- I Let You Win: He claims this when Roxanne makes fun of him for doing badly in the race, which only angers her more.
- The Un-Favourite: His brother is more serious, mature and interested in actual science despite being younger, so of course their parents prefer him.
- You Have to Believe Me!: It's kind of hard to blame Roxanne for scoffing at his claims of meeting an invisible person considering he provides no evidence other than his unverifiable say so.
An invisible boy who hounds Sammy.
- Adaptational Villainy: The book leaves it ambiguous as to if he really meant to harm Sammy, but in the movie he's a straight up bad guy.
- Hero Antagonist: When it's revealed Brent is a human and Sammy's an alien, Brent's pranks and torment seem more justified in that he is lashing out at the invaders who wiped out most of humanity.
- I Just Want to Have Friends: He seems to genuinely want to be Sammy's friend, despite doing a bad job at it.
- The Last of His Kind: It turns out Brent is the only actual human character in the book, having been made invisible to protect him from the alien invaders who now inhabit the Earth. The ending of the book says Brent will be put in a zoo because humans are an endangered species.
- Revenge: In the 2015 movie, he's the only monster who avoided capture, and makes his presence known to Stine by typing "The Invisible Boy's Revenge" on his typewriter.
- Tragic Monster: One of the last human children in existence? Definitely tragic. The protagonists are even more monstrous than he is. In fact, the TV show's adaption ends with the implications that Sammy and his parents are going to murder him in cold blood.
Roxanne JohnsonSammy's "best friend".
- With Friends Like These...: Not only does she berate Sammy constantly, when he confides in her about meeting an invisible person she decides to humiliate him by telling the whole school about it.
A student at Bell Valley Middle School who becomes friends with Tommy Frazer. Thalia gets picked on because she wears a lot of make-up, to the point that she nearly has a nervous breakdown when someone steals her lipstick. She was part of the original Bell Valley Middle School class of 1947, the one sent into Greyworld by Mr. Chameleon. Thalia was one of a few who retained their sanity, and discovered by accident a way to escape back into the color world, only she is now permanently gray.
- Berserk Button: Don't ever try to steal her lipstick or her make-up. Justified since it's all that's keeping her true form hidden.
- Broken Bird: While she stayed sane after all those years, she feels so out of touch with the modern world she'd rather spend the rest of her life trapped in a colorless, photo-like dimension with the rest of her friends.
- Chekhov's Gun: Her lipstick. When she was still in Greyworld, she discovered that a lipstick tube buried in her purse somehow retained its color. She started drawing with it and was shocked to see the color had eaten away at the walls and opened a portal back to the real world. Thalia went through, but the hole closed up before she could get her friends. When she makes it back to Greyworld, she uses the lipstick to help Tommy and Ben escape.
- Going Native: The stress of constantly hiding her gray visage, being constantly picked on by the other kids because of her "obsession" with make-up, and just generally feeling out of place because of how different the world is makes Thalia realize the only place she belongs now is Greyworld.
- I Choose to Stay: After helping Tommy and Ben return to the color world, she stays behind because she doesn't think she belongs outside of Greyworld anymore. The rest of her friends end up realizing the same is said for them.
- Locked into Strangeness: She's completely gray, and wears so much make-up to hide her gray skin and hair. Like the rest of the class, being in Greyworld stopped her physical growth.
- Older Than They Look: She should be in her sixties by now, considering she was a member of the 1947 class.
- Uncanny Valley Make Up: She wears so much of it that this is the end result.
- Walking Spoiler: Unlike most examples in Goosebumps canon though, she's not the villain.
The Greyworld Children
A terrifying clan of mutant children that reside in "Greyworld", a dimension rendered permanently gray. They roam the lonely streets, searching for unlucky visitors to convert to their clan. What's worse, they all used to be normal kids.
- And I Must Scream: Driven insane by years trapped in the Black and White world.
- Assimilation Plot: They desire nothing more but to rid anything-and anyone they see of color, turning them over to "the gray". And now,the movie implies they'll be taking this to our world!
- Creepy Child: Holy shit. The "Oil spewing" ceremony speaks for itself.
- Cult: One composed of insane children. There's a reason this entry is considered one of the darkest in the series.
- Driven to Madness: They slowly lost their minds over the decades they spent trapped in Greyworld, and only a handful of the kids managed to retain their sanity.
- Knight of Cerebus: Not only are they not hammy or campy antagonists, but the reveal of what they are turns The Haunted School into one of the darkest and tragic books in the entire franchise.
- Madness Mantra: "Turn. Turn to the Gray!"
- Tragic Monster: Every one of these mutants were once perfectly normal schoolchildren who attended Bell Valley in 1947. Than the evil photographer Mister Chameleon sent them to Greyworld and it changed them forever.
- Trapped in Another World: For so long now they've given up hope of rescue.
- Weakened by the Light: They flee at the sight of any light or color. As it turns out, this weakens the fabric of the other dimension and allows an escape.
The evil photographer who trapped the kids in the Greyworld with his magic camera to start with.
- Child Hater: Supposedly hated kids, but was the only photographer available.
- Evil Sorcerer: Obviously some kind of magic person, as he was somehow able to make a magic camera.
- Ironic Name: Chameleons can change color, and he was able to trap people in a world with no color. Lampshaded by one of the kids trapped in Greyworld.
- Posthumous Character: Averted; he's somehow still alive in the present and takes the kid's picture in the Twist Ending.
- Reptiles Are Abhorrent: He's named after a lizard and is evil.
A mysterious couple who live in a rundown home in Wolf Creek. Alex Hunter hears mysterious noises coming from their house, and begins investigating the possibility that the two are werewolves. He only has part of the truth. There are no Marlings and there never have been. The house is abandoned except by those who use it to hide their werewolf skins. The real werewolves are none other than Alex's aunt and uncle.
- The Ghost: They don't appear until halfway into the book, and even then the werewolves Alex goes up against are really his aunt and uncle.
- He Who Must Not Be Seen: The only people who've ever seen them appear to be Alex's aunt and uncle. They're lying.
- Living Prop: They were invented by Martha and Colin Hunter to act as a smokescreen for why strange noises were coming from the house next to them.
- Our Werewolves Are Different: They, or rather Martha and Colin are closer to the Skin Walker legend of Native American folklore, in that they shed their skins every morning.
- Secret Identity: Of Martha and Colin Hunter.
- "You presented a problem I had a solution for. Now I'll be here to solve all your problems... as long as you take care of me. And you'll take care of me if you want your parents to stay alive."
A mysterious boy who lives in protagonist Marco's basement, and turns the kid's life into an insane nightmare.
- Affably Evil: When he's not being a creepy monster, Keith is a timid, soft-spoken boy who wants to be friends with other kids, even if his behavior is twisted and off-putting.
- Ambiguously Evil: Since most of the story is his nightmare, it's not clear how much of his terrifying stalker-like behavior is him in the waking world.
- Basement-Dweller: In the sense that he's literally living in Marco's basement. His mother does as well.
- Big Bad: Of I Live In Your Basement! and the comic book story Download and Die!
- Body Horror: He's a walking mass of yellow goo that turns himself inside out frequently.
- Blob Monster: His true form.
- Creepy Child: Not even a human one.
- Distaff Counterpart: He could be considered the Spear Counterpart to Della from The Curse of Camp Cold Lake since both characters are pale, eerie creepy children who stalk the main characters after the latter two's near-death experience (Sarah almost drowning and Marco put in a coma after the bat knocked him out) at an attempt to befriend each of them.
- Eerie Pale-Skinned Brunette: In his human form, he has dark hair, with sunken eyes and a pale complexion. It's a hint that there's something really off about him, especially on the inside.
- Even Bad Men Love Their Mamas: He mockingly scolds Marco at one point for disobeying his mother. After all, he still lives with his.
- Humanoid Abomination: For starters, that thing on the cover is his true appearance. This isn't even mentioning that he can turn inside out while in human form.
- I Just Want to Have Friends: A tragic and horrifying example. Keith really does want to have human friends, but is forbidden to interact with them, and as his book-length nightmare shows, he's terrified that Marco will hate and fear him like his mother says.
- Non-Malicious Monster: The real Keith is just as scared of Marco as vice-versa, and tries to avoid contact with humans.
- Not-So-Harmless Villain: A boy making statements about living in someone's basement doesn't seem quite as scary at first, but Keith later demonstrates he has enough strength to back up his demands and almost kills Marco by smothering him in his blob form.
- Schrödinger's Butterfly: He's the one dreaming the events of the book.
- Stalker Without a Crush: He constantly appears out of nowhere to remind Marco that he's living in his basement.
- Walking Spoiler: He's definitely not the first example in the series, but he's certainly the most mind-boggling.
The protagonist of the story. He has an overprotective mother who warns him of the most ridiculous things to watch out for, prompting him to sneak out to play softball with his friends. Ever since taking a blow to the head via baseball bat, Marco ends up getting strange hallucinations that Keith keeps calling him to tell him that he lives in his basement.
- Adult Fear: The fact that a preteen boy gets hit in the head by a baseball bat and reading the full detail of his pain (especially since this book is told in first person) is very unsettling to read through.
- Ambiguously Evil: Since the book ends with Keith as the narrator, it's unclear whether Marco is the real villain of the story or just simply Obliviously Evil.
- Batter Up!: The first chapter of the book ends with Marco getting knocked out cold by being hit with a baseball bat.
- Childhood Brain Damage: Thanks to the blow on the head, Marco ends up getting strange hallucinations and getting strange dreams that terrify him.
- Disappeared Dad: His father has never been mentioned once in the story, as nothing insinuates that he is either dead or divorced with Marco's mother.
- Dream Within a Dream: It turns out Keith was imagining himself as Marco at the end of the story.
- Forbidden Fruit: Marco flouts his mother's warning to not play softball with the other kids by sneaking out to the field anyway. This later comes back to bite him.
- I Just Want to Be Normal: Depending on Marco's own connotation of "normal", Marco just simply wants his mother to stop treating him like a baby and let him enjoy the activities he likes.
- Laser-Guided Karma: He gets hit with this HARD (both figuratively and literally) after disobeying his mother's orders to not play softball with the others. The subsequent blow is what leads him to his hallucinations.
- Little Big Brother: He's shorter than his younger sister Gwynnie.
- Made of Iron: Seriously, Marco has to have a really hard head to not get killed from the blow with a baseball bat...or even a slight skull fracture.
- Masculine Girl, Feminine Boy: Downplayed on Marco's part. There isn't anything remotely feminine about him, but he isn't very athletic and is somewhat weak-willed. Meanwhile, his sister, Gwynnie, is much bigger, stronger, and much more energetic than he is.
- Mind Screw: Marco loses all touch of reality thanks to Keith appearing everywhere in his life. It's at a point in which Marco finally gives up and decides to comply to Keith's demands since he doesn't even know whether he's dreaming or not.
- Momma's Boy: Averted. That's just what his mother wants him to be. But he makes it clear that her overprotective attitude towards him gets rather annoying to deal with.
- Only One Name: No mention of his last name was given in this novel.
- Sanity Slippage: His mother certainly believes he's going through this.
- Savvy Guy, Energetic Girl: Marco is the Savvy Guy to his sister's Energetic Girl.
- Schrödinger's Butterfly: The story seems to be told in Keith's dream on his perspective on what it would be like to be in Marco's shoes.
- Strict Parents Make Sneaky Kids: Since his mother is overprotective of him, Marco has to sneak to the baseball diamond to play softball while his mother isn't around.
- Through the Eyes of Madness: The whole novel has him hallucinating that Keith is everywhere he is!
- Tomato in the Mirror: It turns out that Keith was the one dreaming about being in Marco's shoes all along, and that he was the one who got hit on the head with a bat.
- Wacky Parent, Serious Child: Downplayed. While Marco's mother is far from wacky, her overprotectiveness of her son goes in rather comically ridiculous degrees to a point where Marco's friend even joked about her letting Marco use crayons in replacement of the pencils he was sharpening.
A boisterous athletic girl who often pushes other kids around and is the cause of Marco's head injury. It's later revealed that Marco only dreamed Gwynnie hit him with the bat, and that Gwynnie is really Marco's sister.
- Amazonian Beauty: The "beauty" part is downplayed since how beautiful she looks is never brushed upon, but she is described with feminine features, having long, thick black hair and green eyes.
- Annoying Younger Sibling: When she is revealed to be Marco's younger sister this whole time, she ends up annoying him with her jokes.
- Big Little Sister: She's taller than Marco and is revealed to be his younger sister.
- Body Horror She actually turns inside out right in Marco's eyes!
- Boisterous Bruiser: Marco mentions Gwynnie would yell the loudest to win in an argument.
- But You Were There, and You, and You: Since the first half of the story was all a dream, Marco dreamed that Gwynnie hit him with the bat and turned inside out, and when he wakes up from his dream, he sees Gwynnie with his mother, remembering that Gwynnie is his sister this whole time.
- Disappeared Dad: Since she is revealed to be Marco's sister later on, no mention of her father is ever brought up.
- Huge Schoolgirl: She's apparently the biggest female of the school.
- Jerk with a Heart of Gold: Gwynnie is genuinely contrite of hitting Marco over the head with the baseball bat and tells him that she ran up to him earlier to apologize for that and the joke she made in class. Granted, it was really a dream, and Marco's friend was the one who hit him in the head with the bat, but it still counts.
- Masculine Girl, Feminine Boy: She's the masculine girl to her older brother Marco's feminine boy.
- Passionate Sports Girl: She is tall and athletic, and Marco mentions she can hit a ball really well.
- Savvy Guy, Energetic Girl: Marco is much calmer and more relaxed than Gwynnie, who is loud and boisterous and often pushes other kids around.
- Statuesque Stunner: She is perhaps the biggest and strongest girl in Marco's school.
- Stronger Sibling: Marco mentions she's much stronger than him, and it's later revealed she was his sister this whole time.