In order of (more or less) their first appearance in the anime...
Several characters share the following tropes:
- Anthropomorphic Personification: Some of the guests are supposed to represent a specific fear. It's up to you to figure out what they are.
- Monster of the Week: Much of the cast doesn't appear all too often, but most of them have at least one episode per season, and have cameos in other episodes.
- Anthropomorphic Personification: It is very strongly suggested he's the physical form of (lost) desires and dreams...his hotel/world is a manifestation of chaos.
- Butt-Monkey: Becomes this in The Bloody Karte, though he had lots of other moments before that season.
- Collector of the Strange: In the manga, he collects various strange objects, such as a Russian roulette chair and Hitler's dentures. Lost or damaged souls with unfulfilled hopes and dreams he finds even more irresistible.
- Control Freak: He needs to know where his guests are for every single waking moment.
- Crusty Caretaker: Of Gregory House, of course.
- Dimension Lord: Of "The Lost World" (which seems to be Purgatory).
- Dirty Old Man: He has a collection of porn magazines (in the videogame, he introduces the concept of book items by confiscating a dirty magazine from the current guest and running off to the Storeroom), makes a few suggestive comments to Second Guest, and in Bloody Karte, he gropes Cactus Girl.
- Evil Laugh: Well, more of a chuckle, but still...
- Faux Affably Evil: Oh sure, he'll say he wants to help the guests, offer them a place to stay, and calls the Guests "my friend/my dear," but he'll do it while breaking their psyches, swallowing human souls, and actively planning to feed them to his mother.
- Friendly Enemy: Despite the fact that he's keeping every lost soul in his hotel for all eternity. The guy genuinely likes the guests of the 2 series and manga.
- Nigh Invulnerable: You cannot destroy him through any means, real or unreal. He'll keep on returning, he'll always keep your room ready for you. Oh, and don't bother running. You cannot escape him either.
- No Sense of Personal Space: Expect him to pop up in your face when you least expect it, practically breathing down your neck.
- One-Winged Angel: He can become a ghost, usually in a desperate situation (the house burning down for instance).
- Order Versus Chaos: His conflict with Judgement Boy in The Last Train boils down to his belief in the future being unpredictable and chaotic as opposed to a set path.
- Pet the Dog: He has his moments—mainly in the third and fourth seasons.
- Screw Destiny: A surprising mindset coming from someone who drags people into madness, but he believes that the future is, while inevitable, self-determined.
- Villain Protagonist: The third season focuses on him instead of a guest.
The GuestThe Guest is the main character of the first two seasons, with everything seen from their eyes. The First Guest is a working man with a wife and son, and the Second Guest is a working woman who struggles with the decision of Career Versus Man. In the manga, the guest is a jobless 22-year old named Tooru Takenozuka.
- And Then John Was a Zombie: This is the implied fate of the First and Second Guests, with the First Guest becoming Haniwa Salaryman and the Second Guest becoming a member of Gregory's family.
- Badass Normal: The Second Guest deserves this for the fact that at one point she, rather than just take Gregory's BS, picks up an ax and chases him off with it.
- Damaged Soul: Tooru Takenozuka from the manga. Outwardly, he appears to be a 22-year-old freeter. Its later revealed that Takenozuka's very form and spirit, is in a state of constant flux. He is, in reality, 50 years old, but part of him could never accept the fact that he grew beyond his twenties without accomplishing anything extraordinary or wonderful with his life. All of his dreams and ambitions went unfulfilled.
- Downer Ending: Neither Guest manages to escape the hotel, and returns to stay forever. The First Guest quite likely becoming Haniwa Salaryman, and the Second Guest becomes a member of Gregory's family.
- This also extends to the Player Character Guests from Soul Collector and Lost Qualia, as well as Tooru from the .anga, as all of them wind up returning to Gregory House after their storylines end.
- The Faceless: Averted with Tooru from the Manga.
- FaceHeel Turn: The second guest becomes another member of Gregory's family.
- No Name Given: To either. Though the first guest implied to become Haniwa Salaryman gains one after becoming trapped in the hotel. Averted with the manga and its guest Tooru Takenozuka.
- Pet the Dog: Both guests engage in this more than once.
- P.O.V. Cam: Most scenes are displayed from their perspective.
- Sanity Slippage: Heavily implied for the First and Second Guests and used as the Soul Collector Guest's Life Meter. Said Guest also experiences it regardless in the ending of the game, as realizing that coming to Gregory House of their own volition to escape the crushing aspects of reality means that they could, and do, end up going back. This time for good.
- Soulless Shell: What the first guest ends up becoming.
- Sweet and Sour Grapes: After escaping the hotel, the First and Second Guest return to life as how they desired it... and quickly realize that the world was as bland and dreadful as it was said to be, and return to Gregory House.
- Woman Scorned: Heavily implied by the second guest's backstory.
- What Happened to the Mouse?: Almost too literally with the second guest, after she becomes part of Gregory's family, she's never mentioned again.
Neko ZombieOnce part of a family that stayed at Gregory House and cause the Rat a lot of grief, Neko Zombie was seemingly taken apart, put back together, and had his face sewn up. He's usually in his room, shackled and moaning for food.
- Adaptational Villainy: In the .anga, Neko Zombie is not the chained-up helpful character he is from the show or games. Instead he owns a fish catching game at a festival, teleports the main character into a giant pool and chastises him about being indecisive and hesitant to pick a dream, and is just as insane as everyone else.
- Cats Are Mean: Actually he's not a bad guy and genuinely wants to help guests escape if he can, but he's understandably bitter about what was done to him and so he can be snappish. Approaching him during certain times in the game, specifically when he's very hungry, will cause him to attack you. And if you had chocolate on you he takes it without giving and item in return.
- Dark and Troubled Past: There's the body-being-sewn-up thing, of course, but there's also a hint that something else has happened to him, judging from the way he states he doesn't deserve to leave to Angel Dog.
- Don't You Dare Pity Me!: Neko Zombie angrily shoves off any and all attempts at the Guest displaying sympathy, seeing it as pity. He eventually relents somewhat after being gifted the Guest's hankerchief, which he ties around his neck.
- Fear of Thunder: This is because it was during a thunder/lightning storm that someone stitched him up.
- Hidden Depths: Gregory very much wants you to think that he's dangerous and violent, but he's really only hostile to Gregory most of the time.
- Historical In-Joke: The name "Jack Ketch", which is on his shirt, belonged to an infamous executioner under King Charles II.
- Kill It with Fire: How he destroys the hotel and tries to kill Gregory. It doesn't work because of the second guest's hesitation.
- Obfuscating Stupidity: Around Gregory and the other residents, he acts like a fussy, starving child who can't keep his hands — or his teeth — to himself. Partly so they don't suspect he's helping the Guests, partly just so he can antagonize Gregory.
- Red Eyes, Take Warning: Averted, though scary-looking and a little snappy, Neko Zombie is one of the few genuinely nice characters in the series.
Lost DollA sad-looking little girl who continuously sobs because of her lost doll. Unbeknownst to her, she actually is the doll she cries for, which manifests itself as a blue nasty face on the back of her head.
- Abhorrent Admirer: In the .anga, she jump scares Tooru, only to find him cute, hug him hard, and freak him out.
- Characterization Marches On: The first two seasons, her story has no conclusion and she never finds out where her doll is, In "The Last Train" she finds out the truth about herself via Talking to Themself, and in "The Bloody Karte" she seems to be co-existing with her evil side in the last episode.
- Dramatic Irony: One side will always pitifully look for her doll, unaware that she is the doll.
- Not Quite Dead: Cutting her strings seems to only be a temporary measure, as she appears in all the seasons.
- Power Floats: For some reason when she switches to her evil side. Its because she's suspended and controlled by some unknown force with string.
- Superpowered Evil Side: Implied in The Last Train
- Weaksauce Weakness: Cutting the strings that make her fly seemingly kills her.
Hell's ChefA dangerously prideful chef of the house who makes tasty (but dangerous, and dubiously made) cuisine. He seems to be constantly angry, and kills those who mess with or insult his dishes.
- Ax-Crazy: Don't expect to last long if you refuse to eat his cooking.
- Berserk Button: NO SMOKING!
- BFS: It's a knife, but it's so big that it's basically a sword.
- Bunny-Ears Lawyer: For all his questionable methods and angry tendencies, his food is usually portrayed as tasting REALLY good. In the .anga, for example Tooru is initially not confident in the food, but states it delicious, to which Hell's Chef goes on a lecture about how taste and presentation are two different things, and requests that Tooru eat a Mushroom in his salad, which is revealed to cause paralysis.
- Dumbass Has a Point: The way he sees it, you can only be spared for your foolishness or smoking habits if you compliment the hell out of his prepared meals. Tooru Takenozuka from the manga, literally had no idea how close he was to being carved up.
- Lethal Chef: Twice over, in fact! He can kill you with the ingredients that he uses, or if pissed off, cleave you with his knife.
- Pride: Cannot receive criticism, and only ever eats his own cooking.
- Weaksauce Weakness: Gusts of air will blow out the flame on his head, causing him to stop moving.
CatherineA lizard woman who loves to draw blood with an over-sized syringe. Catherine is a lonely woman who desires someone to love, but her fascination with drawing blood, coupled with somewhat of a temper, makes everyone uncomfortable around her.
- Deadly Doctor: She's supposed to be the doctor of Gregory House, but no-one's seen her do anything but drawing blood.
- Does This Remind You of Anything?: When she slowly draws blood, she moans suggestively; and her draining Gregory in season two of his blood, with him pleading for her to stop is reminiscent of a rape.
- The Dragon: Seems to be this to Gregory normally.
- Girl with Psycho Weapon: She always carries a syringe taller than her, and has plenty of backup ones in her office.
- If I Can't Have You...: Has shades of this in The Bloody Karte, such as when she kills Haniwa Salaryman after he announces his wife wants to get back together with him.
- Ambiguously Bi: Despite a clear attraction to men, she seems just as excited to draw blood from the second guest (who was clearly stated to be female), and it's obvious she considers blood-drawing a sexual activity.
Mummy DogA young puppy with an axe lodged in his head, not that he knows its there. Wide-eyed and naïve, Mummy Dog is extremely cheerful towards everyone.
- Adaptational Villainy: Administers a poison pill to you, should you get caught by him after stealing his soul in the game. He's likely going off of his father's advice about medicine, which isn't all that sound.
- Cheerful Child: Quite enthusiastic about everything, despite his painful situation.
- Children Are Innocent: One of the only residents who isn't consciously malicious.
- Failed a Spot Check: Has an ax in his head, which he doesn't seem to acknowledge. He knows he has head-aches, but thinks he just inherited them from his dad.
- Generation Xerox: Aside from the axe and clothes, he looks exactly like Mummy Papa.
- Obliviously Evil: in the videogame.
Mummy PapaFather of Mummy Dog, Mummy Papa has a sword in his head, is just like his son. Easygoing and calm.
- Butt-Monkey: Slightly, but it's there. In Bloody Karte, for instance, he's stabbed in the head by Musha Dokuro because he was in a wall behind a painting the ghost attacked with a spear.
- Failed a Spot Check: Has an Arabian sword in his head...like his son, he doesn't know it's there. Despite constant splitting headaches.
- Hypochondria: He never catches on to the sword in his head, and will spend most of his time talking about his injuries and illnesses. He and his son visit Catherine a lot in the game as a result.
- Obliviously Evil: His horror show in Soul Collector is him giving you a giant poison pill in the hopes that it will make you feel better.
Judgment BoyA strange-looking puppet/scale-like character who wanders about the hotel on a mounted track in the ceiling, He forces those he meets to answer his questions, usually involving a moral dilemma, and almost always chooses the more terrible answer, regardless of the individuals answer.
- Adaptational Heroism: In the videogame, while not being overtly heroic, he doesn't foist a question on the player character like he does in the show (preferring instead that they have something with them for the judgment to happen), and is way more liable to drop the dollar sign if you answer his question correctly, giving you his soul as a prize.
- "Do you know / Who I am? / They call me / Judgment Boy!"
- In the video game, it's changed to "~Do you know my naaaaame?~"
- "JUDGMENT now!"
- Insane Troll Logic: Perhaps not outright insane logic, but the scenarios he presents and the consequences of the choices made don't necessarily have to happen the way he tells them. Then again, in most cases he's reminding the guests of things that already happened.
- Large Ham: "JUUUUUDGMENT!!!!"
- Sadistic Choice: His purpose to to present these to the Guest. Hopefully they're just hypothetical.
Cactus GunmanA cactus cowboy who is always looking for a duel, but is actually very cowardly when danger presents itself. despite being armed with weapons, he almost always misses his mark, no matter how close he is to the target.
- All There in the Manual: Some sources claim that he was the leader of a failed revolution in life, and that his fervor didn't make up for the fact that he couldn't shoot anything.
- Aloof Big Brother: At least to his sister...
- A-Team Firing: He very seldom hits what he aims at. Supposedly he managed to shoot a target once in his life. And he almost always hits Gregory.
- Casanova Wannabe: He tries his best to hit on the Second Guest, to no avail. In the game, he'll also be enamoured with the player should they be female.
- The Gunslinger: Averted. He's a terrible shot. Parodied in Soul Collector where his Horror Show has him react with panic when he actually hits something.
- Plant People: Presumably. He's called Cactus Gunman for a reason.
TV FishA ghost fish with a TV head that swims through the walls of the house while playing a strange tune, its screen can display various images, such as memories and surveillance footage.
- No Good Deed Goes Unpunished: Continuously shows the second Guest footage of Gregory's conversation with his Mother, which while helpful, makes her mad enough to hit it.
- The Voiceless: Because it's not anthropomorphic.
Public PhoneA red phone with feet that lays in public, tricking people into paying him lots of money to use, only to run off once his ruse is found out.
- Con Artist: Tricks people into thinking they can call with him in order to get their cash.
- Laser-Guided Karma: Impersonates Gregory Mama to steal money from Gregory, only to incite her wrath for impersonating her.
PromptersMysterious, darkly dressed characters that do various odd jobs around Gregory House.
- All There in the Manual: Twin stage hands who aren't talking to each other.
- The Faceless: Their faces are too shadowed to be seen.
- The Voiceless: They never speak. They just work.
Gregory MamaGregory's mother, for who he grabs souls for to keep up her youthful appearance. She is actually just as unsightly as her son, who she abuses constantly. She is a powerful sorceress, which combined with her Hair-Trigger Temper and insatiable desire for souls, make her terrifying when upset.
- Abusive Parents: It's implied that she physically abused Gregory as a child and still uses his fear of her to get him to do what she wants.
- Big Bad: In the game, you directly battle her.
- Evil Matriarch: An abusive mother figure who rules over her son and uses him to harvest souls for her own purposes, and no father in sight.
- Greater-Scope Villain: Gregory may be doing all the legwork, but Mama is why he's stealing souls from people.
- Laser-Guided Karma: In both Season 2 and Soul Collector. In Season 2 she gets devoured by Trap Mouse. In Soul Collector, the player gets to fight her directly and trick her into blasting open the door to reality.
- Vain Sorceress: Subverted in that she's not beautiful at all, she just considers herself beautiful.
- Wicked Witch: She has a very clear "witch" aesthetic to her design.
Clock Master & My SonA time-controlling father and son who fix clocks in Gregory House.
- The Alcoholic: Clock Master drinks a lot at the bar, due to his shame at no longer being good at controlling time in his old age.
- Catchphrase: "TIME IS MONEY!!"
- Feeling Their Age: In the game, Clock Master even feels it in his own Horror Show as straining his time powers causes wind-up key to pop out leaving him unconscious. This is also how you get he and My Son's Lost Soul as causing him to fly off the handle without My Son to pop his key back in leaves My Son vulnerable to getting the soul extorted out of him.
- Only Sane Man: While initially a little bit rude to the first guest, they eventually do agree to at least try and help him out of Gregory House. And in the game, Clock Master is really civil until he finds out you stole My Son's screwdriver.
- Papa Wolf: When Clock Master finds you stole something from My Son, he goes absolutely nuts and chases you though the halls until he strains his time control powers too much.
- Schmuck Bait: You can steal My Son's screwdriver without talking to Clock Master, but then My Son will just call his dad from anywhere in the grounds when he sees his screwdriver. You're then due for a Horror Show that may send you back/forward in time by 6-8 hours.
- Time Master: Clock Master's claim to fame is that he can stop time completely... well, he could do it when he was younger. If he tries it now, he is very likely to knock himself out.
- Too Dumb to Live: Clock Master eats poisonous peanuts in The Last Train, and eats them again in the same episode at the very end because he liked the taste.
- What the Hell, Hero?: To get their soul, you basically have to steal a prized gift from My Son, make his father fly into a rage and make him throw himself out of whack so he doesn't come when My Son yells for him to get you, and extort the soul out of My Son so he can fix his dad. Slightly mitigated by the the fact that, you know, they're keeping a Lost Soul from passing on.
Frog Fortune-TellerAn old frog woman who has a habit of appearing and disappearing at will to tell passerby their futures, sometimes for a price, sometimes for free.
- Cool Old Lady: She seems generally kind, if a tad mysterious, and tells predictions to the First and Second Guest involving their predicaments. Compare that to when she made predictions for Gregory (who was too cynical to heed her) and Catherine (who she extorted, and didn't tell the entire fortune to).
- Fortune Teller: It's in her name.
- Save Point: In the PS2 game.
- You Can't Fight Fate: "Never try to argue with fate..."
- Verbal Tic: In the video game she lets out a low "ribbit" after every sentence, it's even in the save game text boxes.
Toilet BabyA strange character that is a baby with a toilet paper dispenser for a head, usually riding on a toilet. Likes to flush him/herself down and drag others who try to help in with it.
- Ambiguous Gender: Until Gregory talks about it, you'd have no idea if Toilet Baby is a girl or a boy.
- Wounded Gazelle Gambit: Does this to drag people into its toilet.
- The Cameo: Appears in The Second Guest for a few seconds behind Gregory.
Roulette BoyA red-skinned boy with a board game spinner on his head. He's always literally drooling in anticipation for another game, yelling at people to spin his spinner. Though his game tends to have traps on unlucky spaces, he really is just an overtly playful kid and is a good sport when he loses.
- Amazing Technicolor Population: Has red skin.
- Anthropomorphic Personification: He may represent the uncertainty in/fear of the future and where its going. As in The Last Train he disappears once Gregory reveals he does know where he's going, and in Another World his game revolves around Tooru's age and what will happen in his future.
- Catchphrase: "SPIN ME!" as well as "HURRY UP AND SPIN ME!"
- Casino Park: What his room turns into when players have what he needs for them to play.
- Graceful Loser: When you win, he gladly hands over his soul to you. It seems that afterwards, he just wants you to play again for his horror show, and you're just EXTREMELY unlucky.
- Most Annoying Sound: Look at his catch phrase. Now imagine hearing that every turn of his game.
- Reality Warper: He can make doors appear and disappear, drops anvils out of nowhere, cause explosions, and transport the players into a Casino Park. Its much more prevalent in the Manga and "The Last Train".
Speed Mouse & Mutant DucksA pair of ducks who run the Speed Mouse, a haphazard roller coaster in some unspecified location of the house.
- Totally Radical: In the English dub, one of them has a light amount of this kind of dialog.
Mirror ManA creature hidden behind the glass of a mirror its in. It lives in a mysterious mirror room under the house, and seems to have nothing else to do than show people their true selves.
- Mirror Monster: Somewhat literally, as his eye can be seen behind the glass of the mirror and bleeds when it's broken
- The Mirror Shows Your True Self: He claims he does, but it's hard to say if it's true.
- It's subtly hinted that it isn't, as the word "false" is written right above his casing.
- Only Sane Man: To a degree, he reveals to the Guest that he lacks "substance" that is his soul but is rather mean spirited when he shows the guest his "true self".
- Red Eyes, Take Warning: Has a single red eye that shows itself once the First Guest Breaks his glass.
Kinko and InkoA female toucan/parrot and a male safe in a secret room hidden in the Mirror room of the house. They protect something inside Inko.
- Engrish: "Secret Nomber."
- Only Sane Man: Both of them are actually pretty nice to the first guest. Inko even kept the first guest's soul safe until he found him again.
- Red Alert: Kinko's job is to raise an alarm once someone gets close to Inko. However she is liable to stop once she recognizes the first guest as Inko's friend.
- Simpleton Voice: Inko
- True Companions: Even though she'd like other people to talk to, Kinko admits that being with Inko is better than being alone.
- What Happened to the Mouse?: Never seen after season one, despite contributing a big part to the first season.
Angel/Devil DogTwo sides of the same character, Angel Dog is the friendly side, offering aid and guidance, but as her more devious Devil Dog persona, she often explains to people other than who she's guiding specific details about her methods of guidance.
- Split Personality: Not literally, as they seem to share memories and sense of self, but she switches between the two personas depending on her mood.
Dead BodiesCorpses that lie in the graveyard surrounding Gregory House, due to their decomposition, they are usually in need of new bodies to survive.
- Border Patrol: Assuming the front door isn't locked, they're the main reason escaping through it won't work.
- Logical Weakness: Being decomposing corpses, their bodies are fragile. This is why they want new ones.
- Trademark Favorite Food: Alcohol.
- Weaksauce Weakness: Water and wind.
Judgment Boy GoldBoss of the Judgement Boys, Judgement Boy Gold trains new recruits so that they can pass their own judgments on others.
- Large and in Charge: The leader of the Judgment Boys, he's much bigger than they are.
DeathThe grim reaper, who aids lost souls and those who have become prisoners of Gregory House. A very nice individual, He aids the Guests, and even Gregory at one point.
- Brooklyn Rage: Not full of rage mind you, but speaks in a joisey accent in the videogame.
- Don't Fear the Reaper: One of the only two characters (besides Neko Zombie in the PS2 game) who's genuinely kind to the Guest.
- The Grim Reaper: One of the nicer depictions, but it's rather telling that his greeting in the game is basically telling the Guest to just give up and throw away their worries. Of course considering that the Guest was a disembodied soul at the time he was probably trying to ease them into passing on.
- Nice Guy: He's even nice to Gregory who has caused all of this trouble and chaos.
- Shout-Out: He wears the Swedish flag as a hat as a reference to Ingmar Bergman, director of the famous movie The Seventh Seal which portrayed Death playing chess.
- Took a Level in Jerkass: Though it was a light level. In the video game he seems less patient and a little rough towards the player character than in the cartoon.
Stephen Haniwa SalarymanA Clay statue salary man who is completely wrapped up in his work. Needless to say, he's not all too happy with his life.
- And Then John Was a Zombie: Canon very heavily suggests that he is what the First Guest has become.
- The Eeyore: A very justified example given what has happened to him and how much he works. Its much more prevalent in The Bloody Karte.
- Empty Shell: What the monotony of his job has turned him into.
- Salaryman: It's in his name for a reason, you know.
JamesGregory's grandson, a clever, and sometimes nasty, kid who love to entertain himself by playing pranks on others especially his Grandpa.
- Bratty Half-Pint: Hates boredom, so he does anything for a laugh.
- Creepy Child: A bit. One could be forgiven for thinking he's about to pull some spooky antics, considering the setting.
- Hotel Hellion: This is what he actually is. Not really malicious, but not polite either.
- Karma Houdini: He always gets away with his actions; Gregory and Mama want to punish him, but he manages to either get away or play innocent.
Sleepy SheepA sheep who tries to help others sleep through the counting sheep method, only to tire himself out and snooze. Has the ability to dream others' pasts and dreams.
- Anxiety Dreams: The kicker? They are YOUR dreams...
- Talking in Your Sleep: He relays Gregory's dreams to him on the train.
Bonsai KabukiA kabuki stage performer with a Bonsai plant in a pot for a head. Has a third eye on his forehead he uses to show people their desires.
- Only Sane Man: Though his shtick is rather strange (and intrusive) He is actually a rather nice guy. In the manga, he's the one who makes Tooru confront his feelings about the girl that recently moved into Gregory House for example.
- Power Perversion Potential: Exploits the hell out of his ability by looking at others desires, such as with Gregory.
- Third Eye: Looking into it reveals your fantasies to both you... AND him.
Cactus GirlCactus Gunman's Sister. Much more talented at the cowboy business, she never-the-less looks up to her brother, though even she has her limits with him.
- Improbable Aiming Skills: She is much, much more accurate than her brother. Cactus Girl only sticks with her lasso though.
- Murder the Hypotenuse: In The Second Guest, she 's furious at the female guest for rejecting her brother, and believes Gregory to be her boyfriend...so she threatens to kill him if the guest doesn't date her brother.
- The Pirates Who Don't Do Anything: In the game, she very rarely leaves her room and will actually give you hints if you talk to her while she's in there.
- Plant People: Like brother, like sister.
Trap MouseA mechanical mouse whose ears form a very unnerving set of jaws on his head. He's used by Gregory to go after the Second Guest, but ends up attacking Gregory Mama because of James. Two more show up during The Last Train with an odd problem.
- The Dreaded: Gregory is outright scared when James is revealed to have what lures Mouse Trap to them. Similarly once James sees it, he flat-out obeys his Grandpa and runs off while it's busy devouring Gregory Mama.
- The Mind Is a Plaything of the Body: Trap Mice are compelled by instinct to snap up anything that gets close with their head jaws, even other Trap Mice.
- Star-Crossed Lovers: The Red and Blue eyed Trap Mice from The Last Train, who desperately want to be together but know that their instincts will cause them to kill each other if they get close. Gregory convinces them to at least try and their fears come true, but because they're mechanical their heads live on and are free from their instincts in a trash pile together.
- Tracking Device: How it finds its target; it is shaped like a gem encrusted brooch or buckle.
Hell's TaxiA living taxi that only ever goes to Gregory House
- The Taxi: A very traditional looking one, albeit with a face.
- Obliviously Evil: It really is just doing its job, and doesn't see the harm in going back to Gregory House.
Poor ConductorA pompous, but sad, character with a record player for a head. He pretends that the music on the record is his own original work and forces those he thinks are "ignorant" of his musical genius to be transported onto the record to be killed by the record player's needle.
- Butt-Monkey: Though it isn't entirely undeserved...
- Dreadful Musician: Its not so much that the music he plays is bad, his actual singing voice is terribly annoying. This of course prompts the Dead Bodies in the graveyard to chuck bottles and garbage at him.
- Reality Warper: Can teleport those who listen to the record he plays into one of its grooves to be killed by the needle.
UmbabaA weird creature wearing a tribal mask and cloak. He is used by Gregory in an attempt to get the second guest's soul.
- Ear Worm: In-Universe. His song is so catchy, anyone that hears it starts dancing along... which eventually jars the dancer's soul right of their body.
- Gone Horribly Right: James' interference accidentally gets his and his grandpa's souls jarred out of their bodies, along with the second guest.
Mono Eye WizardA leader of a cult which tries to make contact with the lord of the world, ignorant to the fact that Gregory is in fact that lord. As his name suggests, he only has a single eye.
- An Axe to Grind: Though he doesn't seem to use it, The Second Guest certainly does after watching Gregory just standing idly by while they almost burn her body.
- Not-So-Harmless Villain: True his rituals are completely ineffective and are stated to be for fun by Death, but he very nearly entrapped the second guest in Gregory House by burning her body out of frustration. Also, All There in the Manual material paints him as a truly sinister and cruel figure.
- Tears of Blood: When frustrated or upset.
Street VendorA kid who sells various foods to passengers of the lost train. Though, some of what he sells can be called into question.
- Honest John's Dealership: On and off, some of his products are iffy (the genetically enhanced peanuts for example) but others can be good (like the chicken he sells at Chicken Farm).
- New Job as the Plot Demands: Goes from working on the train to working at chicken farm, but he always sells food.
Pig GentlemanA snobby critic on the train who complains about Hell Chef's cooking. It ends about as well for him as you'd expect.
- Asshole Victim: He was extremely entitled, but was outright killed for it.
- Be Careful What You Wish For: "I want you to serve me the most tender meat you have available!"
- Jerkass: He gets what's coming to him, though...
- Too Dumb to Live: He outright calls Hell Chef's cooking "garbage" and throws it in his face demanding only his best. He hammers Chef's Berserk Button so hard that he switches into Tranquil Fury instead of Unstoppable Rage and butchers him to make Gregory's meal.
Mummy MamaMummy Dog's mom and Mummy Papa's Wife, who only appeared for a split second at the end of the episode she appears in.
- Failed a Spot Check: She has a plant that grows from her head. Though the website implies that the reason she doesn't notice this is that the plant is draining her intelligence.
Musha DokuroUndead samurai warriors who continue to act as faithful servants in death, but they seem to consider more or less anyone their lord.
- HeelFace Revolving Door: Their loyalty can change around in a heartbeat, depending on who beats them in a fight.
- Servant Race: They only seem to exist to serve their "lord", clinging to anyone who happens to pass by and swearing to serve them. They don't seem to be picky on who their lord is, though.
Fat ChickenA passenger on the Last Train who is Exactly What It Says on the Tin.
- Big Eater: No one could possibly eat that many boxed lunches- oh, wait.
- Nice Guy: He genuinely wants to make people happy, but is too naive to think about how his job would do that.
- Too Dumb to Live: Who would think just eating and sitting around when you're a chicken, going to a place called Chicken Farm is a good idea?
Bone HeadA skeletal traveler looking for the bones of a legendary dragon that his wife died trying to find.
- Adventurer Archaeologist: Implied to be one, in search for the fossils of the Rainbow Dragon.
- Too Dumb to Live: Is far too focused on getting the fossils, and ignores the risk of going into a mine on the brink of collapse.
- Tragic Keepsake: wears a locket that the spirit of his wife uses to lead him to the fossils which leads to his death.
EgypetitA living sarcophagus holding the body of the lord of darkness.
- The Ditz: He didn't bother to check on his Lord long enough that he rotted away.
Dr. FritzA doctor resembling Frankenstein's Monster, and Catherine's boss in The Bloody Karte.
- Butt-Monkey: Hooo boy.(after Catherine uses him to block a bullet) "Why? Why always me?"
- Canon Foreigner: Not that the side-series Bloody Karte is really stated to be canon or not canon, but he never appears outside of it.
- Frankenstein's Monster: Looks like it, anyways.
- Morally Ambiguous Doctorate: Averted.