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- Monster of the Week: Most creatures only have a major role in a single episode, and then having cameos later. Some of them avert this, though, becoming recurring adversaries or major characters.
- Our Monsters Are Weird: You have your average creatures, with basis in mythology and folklore, and then you have things that make you wonder if the designers had a few nips before getting their pencils.
- Back for the Finale: In the final episode, the gnomes, manotauars, lilliputtians, Multibear, Rumble McSkirmish, Sev'ral Timez, and Celestebellebethabelle are found in the Mystery Shack hiding from Weirdmageddon. Octavia is among those waving goodbye to the twins at the very end, and during the credits we see what became of President Quentin Trembley and Dipper Clone 3 and 4.
Jeff: "We'll never forget you, Mabel. Because we're gonna kidnap you."
The little men of the Gravity Falls forest.
- Adorkable: Shmebulock and Jeff.
- Adorable Evil Minions: Let's face it: the gnomes are pretty cute.
- Aerith and Bob: Parodied. The five gnomes who make up Norman are named Jeff, Carson, Jason, Steve and Shmebulock.
- Affably Evil: Jeff is very friendly and personable, but still tries to force a twelve-year old girl to marry thousands without regret. He was also planning on eating Steve if he didn't get any pie.
- And Now You Must Marry Me: The gnomes kidnap Mabel and try to force her into marry all of them so that she can become their new queen.
- Cephalothorax: They have some body besides their head and limbs, but it's so small that their beards obscure it from the front.
- Chekhov's Army: They make a return in the first season finale to help the Pine Twins stop Gideon. Unfortunately, Gideon turns them against Dipper and Mabel.
- Crouching Moron, Hidden Badass: They can form together to make a Gnome giant!
- Decapitated Army: Once Jeff is blasted off into the horizon, the gnomes are utterly without direction. One can even be heard saying "Orders! I need orders!"
- Generation Xerox: In a flashback, the Author is shown meeting Shmebulock Senior, who looks nearly identical to his son.
- Hidden Depths: In Gravity Falls: Legend of the Gnome Gemulets, Shmebulock reads philosophical books.
- The Leader: Jeff is apparently the only one capable of giving orders to the other gnomes; the second he's incapacitated they fall apart and scatter.
- Lilliputians: Commonly referred to as "little men."
- Mars Needs Women: G-rated version: Gnomes wanted Mabel to become their queen by marriage.
- Our Gnomes Are Weirder: For starters, they vomit rainbows.
- Jeff baths in a tub of squirrels, although it's implied that this is not really a gnome thing, and more just Jeff, despite his claims to the contrary...
- Their cameo in "Society of the Blind Eye" implies that they have cannibalistic tendencies. Though this might also have just been Jeff.
- Pokémon Speak: Shmebulock can only say his own name. Assuming that's even his name at all. Given how incongruous it is with all the other gnomes who have fairly common names it might just be a word he's stuck saying. In the video game, he speaks in a coded language after the player returns his books.Jeff: Is Shmebulock all you can say?
Shmebulock: (Looks sad) Shmebulock.
- Stalker with a Crush: Gravity Falls: Legend of the Gnome Gemulets reveals that Jeff has been stalking Pacifica and considers making her his queen.
- Starter Villain: The first antagonists encountered in the show.
- Totem Pole Trench: Their Norman disguise.
- We Will Meet Again: Hasn't paid off yet. In fact, the Pines had to go and meet them when they thought the Gnomes could help fight Gideon.
- Weaksauce Weakness: Questionably, it's leaf blowers. Gideon uses a high-pitched whistle to take them all down in the first season finale.
- Yandere: "Mabel, marry us before we do something crazy!"
- Young and In Charge: Jeff appears younger than the other gnomes, and may be the leader due to this. The other gnomes seems somewhat senile or even feral in comparison.
The Gravity Falls Gobblewonker
The Gobblewonker is a legendary sea monster that is thought to live at the bottom of Lake Gravity Falls.
- Back for the Finale: Its head and neck become the tail for the Shack-tron during Weirdmageddon.
- Mechanical Monster: The Gobblewonker turns out to have been a robot built by Old Man McGucket.
- Monster of the Week: Of The Legend of the Gobblewonker.
- Not the Nessie: Rather a robot made by McGucket.
- Real After All: At the end of the episode, Dipper's camera falls overboard and we get a shot of the real Gobblewonker.
- Scooby-Doo Hoax: The Gobblewonker turns out to be a mechanical monster that Old Man McGucket built to get attention from his son. But then...
- Stock Ness Monster
The Mystery Shack Wax Statue Collection
Voiced by: John Oliver (Sherlock Holmes), Coolio (himself), Larry King (himself), Greg Ellis (William Shakespeare)The Wax figures are living wax sculptures that Grunkle Stan stole from a garage sale and used as attractions in the Mystery Shack.
- As Himself: Both of the Coolio and Larry King wax figures actually are actually voiced by the real Coolio and Larry King.
- An Axe to Grind: Lizzie Borden of course.
- Back for the Finale: Wax Larry King's disembodied has a cameo in the final episode - and he's still stuck inside the duct.
- The Brute: Wax Genghis Khan and Wax Lizzie Borden, who doubles as a Dark Action Girl.
- The Dark Chick: Wax Larry King.
- The Dragon: Wax Coolio.
- The Evil Genius: Wax William Shakespeare.
- Faux Affably Evil: A bunch of goofy wax statues... who happen to be vengeful potential murderers. Larry King, however, seems to be genuinely Affably Evil, even giving Mabel advice on clothing.
- Hartman Hips: Wax Lizzie Borden.
- The Last of These Is Not Like the Others: Most of the wax figures are based off real people, the one exception being Sherlock Holmes who is a fictional character.
- The Leader: Wax Sherlock Holmes seems to be the leader of the wax figures.
- Living Statues: They were brought to life by some sort of curse.
- Posthumous Character: Wax Abraham Lincoln has melted by the time the wax museum is rediscovered. His wax is used to cast Wax Stan.
- Revenge: After Stan locked them away, they wait ten years just to seek vengeance on him. When Soos finds them, they come to life once again and attempt to murder Stan, but accidentally decapitate the wax replica of him.
- Sealed Evil in a Can: They were locked away after Stan shut down the wax museum until Soos stumbled onto them years later.
- Weaksauce Weakness: They can be melted quite easily. By easily, we mean "getting hit with electric candle" or "being exposed to direct sunlight for more than a second".
- Would Hurt a Child: Kill them, actually.
Pa and Ma Duskerton
Voiced by: Ken Jenkins and April WinchellThe ghosts of an old married couple who ran and died in the now-abandoned Dusk 2 Dawn convenience store.
- Affably Evil: They're such a sweet, old couple that you could easily forget that they're also vengeful and sadistic spirits who inflict horrible punishments on the teenagers who broke into their haunting grounds.
- Berserk Button: They really don't like teenagers.
- Domain Holder: Inside of the abandoned convenience store, they are omnipotent.
- Evil Old Folks: They're a couple of sadistic old bats, at least towards teenagers.
- Freudian Excuse: When they were alive, teenagers were a scourge on their store, always upsetting customers with their boom boxes and "disrespectful" short pants. Pa and Ma banned them, causing the teenagers to retaliate with their rap music. The lyrics to the music were so shocking (by their standards) that they were stricken down with double heart attacks. Thus, they hate teenagers and haunt the Dusk 2 Dawn.
- Ghostly Goals: To get revenge on teenagers.
- Happily Married: Even in death, as it turns into an Unholy Matrimony.
- Monster of the Week: Of The Inconveniencing.
- Teens Are Monsters: They wholeheartedly believe this.
- Wouldn't Hurt a Child: They actively torment teenagers (and possibly try to kill them), but are perfectly friendly to anyone even a single year younger than what's considered a "teen".
Voiced by: Kevin Michael Richardson (Leaderaur, Chutzpar), Keith Ferguson (Testosteuraur, Glurk), and Fred Tatasciore (Pituitaur)
Testosteraur: "Not man enough? Not man enough!? I have three Y chromosomes, six Adam's apples, pecs on my abs, and fists for nipples!"A species of half man, half minotaur creatures who reside in the mountains. Emphasis on man.
- Ambiguously Jewish: Chutzpar has sidelocks reminiscent of Orthodox Jews, what looks like a skull cap, and his name is a portmanteau of "chutzpah" (yiddish/Hebrew for audacity) and "par" (Hebrew for bull).
- Anti-Villain: All things considered, they were genuinely helpful to Dipper before the Multi-Bear fiasco.
- Fire-Forged Friends: Chutzpar and the Multi-Bear become cool with each other during Weirdmageddon.
- Jerk Jocks: A whole species of them.
- Large and in Charge: Leaderaur towers over his Manotaur brethren, spews fire from his nostrils, and wears a Modesty Towel stitched out of several other towels.
- A Load of Bull: Half bull, anyway.
- Macho Masochism: The first lesson of manliness is the Pain Hole. Even full Manotaurs can't stand more than a few seconds with their hand in the hole.
- Modesty Towel: The only thing the Manotaurs wear.
- Monster of the Week: Of Dipper vs. Manliness.
- Monstrous Cannibalism: An elderly Manotaur is fed alive to Leaderaur.
- Punny Names : All their names reference their overly masculine nature in some way, or their status.
- Rated M for Manly: Brutally, relentlessly parodied.
- A Real Man Is a Killer: They tell Dipper that he cannot become a man unless he kills the Multi-Bear.
- Real Men Wear Pink: They act manly but some of the Manotaurs including Chutzpah liked wearing the cute sweaters Mabel knitted for them.
- Sensitive Guy and Manly Man: The Manly Men to the Multi-Bear's Sensitive Guy.
- Theme Naming: All their names end in -aur. Except for Beardy.
- Testosterone Poisoning: Made of it.
- Token Heroic Orc: Chutzpar, somewhat; unlike the other Manotaurs, he agrees right away to help Dipper and is rather supportive of him for most of the episode. He is also part of Stan's army in Weirdmageddon.
- Walking Shirtless Scene: To show their manly muscles. In Weirdmagaddon Mabel gives everyone one of her sweaters to wear, but Chutzpar keeps flexing through his.
Voiced by: Alfred MolinaThe Multi-Bear is a magical beast that lives in the Multi-Bear's cave at the top of a high mountain.
- Back for the Finale: He appears along with several other characters we haven't seen in a while at the end of "Weirdmageddon Part 2".
- Bears are Bad News: Subverted. It turns out the Multi-Bear isn't really a bad guy.
- Beary Friendly: He's actually quite nice.
- Conjoined Twins: His body is like two bears joined at the shoulder that are both joined at the back with a third bear.
- Eyepatch After Time Skip: The left eye of his main head was wounded in the aftermath of Weirdmageddon.
- Face Death with Dignity: Accepts with dignity to be killed by Dipper - who decides to spare him when he learns that the Multi-Bear isn't a bad guy.
- Fire-Forged Friends: He and Chutzpar become cool with each other during Weirdmageddon.
- Good All Along: Dipper assumed the Manotaurs had a good reason to want him dead. They really, really didn't.
- Multiple Head Case: The Multi-Bear has eight heads, but only one main intelligent head is capable of human speech. Their placement is very strange: two of its bodies have one head at their crotch and a head on each shoulder, the third body has a regularly-placed head, and the main head is on top.
- Multi-Armed and Dangerous: He has twelve limbs in total from his three different bodies.
- Our Monsters Are Weird: A bear with the body of three bears stuck together and eight heads total. Even by the standards of the show, his appearance is like one of H.P. Lovecraft's rejected concepts. He's not malevolent, though.
- Pop-Cultured Badass: The Multi-Bear loves listening to BABBA music, especially Disco Girl.
- Real Men Wear Pink: The Manotaurs declared him their enemy because he engages in some activities not considered "manly", such as listening to BABBA.
- Sensitive Guy and Manly Man: The Sensitive Guy to the Manotaurs' Manly Men.
The Photocopy Clones
Tyrone: "Dipper, please, this is you you're talking about."
Voiced by: Jason RitterThe clones are copies of Dipper, made from Stan's Copy Machine.
- Adorkable: Given who they were cloned from, this is hardly surprising.
- Anti-Mutiny: The clone Dippers betray the real Dipper because he wanted to abandon their ridiculously detailed plan and just talk to Wendy directly. When #2 realizes that the original plan wasn't working, they laugh it off and share a soda instead.
- Back for the Finale: Clones 3 and 4 disappear after stealing Robbie's bike, but the finale credits show that they're still around, camping out in the rain under a tent and wearing raincoats. They're likely Walking the Earth now and taking precautions not to accidentally melt themselves. And unlike the original Dipper, they seem to still be pining after Wendy.
- Body Horror: Paper Jam Dipper is halfway between being paper and a solid object and folded in numerous places, making him so misshapen that he can't talk clearly and is glad to die.
- Clone Degeneration: Due to the copier getting jammed, the fourth Dipper is a disturbing malformed creature.
- Clones Are People, Too: All of the clones, save for the arm and the Paper Jam clone, are identical to Dipper in both appearance and personality. This means that they share the same motivations as Dipper, including their crush on Wendy. The original Dipper shows legitimate concern when Tyrone melts away.
- Cloning Blues: Mostly averted. The clones are all for doing the original Dipper's dirty work and getting nothing in return until the original deviates from the plan. Tyrone even casually reminds the original that he can be destroyed in the case of a rebellion.
- Evil Twin: Zig Zagged. The clones are more than happy to help Dipper with his plan to woo Wendy... but when Dipper goes against the scheduled plan to dance with Wendy by talking to her in the hallway, the clones turn on him. Even this was far from being evil, though; they just decide to get Dipper out of the way by putting him in a closet and even make sure he's comfortable there with snacks and a coloring book.
- Four is Death: The Paper Jam Clone is the fourth clone made, though the clones made after him continue the numbering at 4.
- Monster of the Week: Of Double Dipper.
- Nominal Importance: The first clone Dipper creates, and the most important one, chooses to call himself Tyrone (the name Dipper apparently always wanted). The rest are just referred to as Dipper 3, Paper-Jam Dipper, etc. 3 and 4 eventually give themselves the names "Tracey" and "Quattro."
- Obsessed Are The List Makers: And how! In fact, the only reason why they attack Dipper is that he decided to deviate from the original plan.
- Our Clones Are Identical: Except the clones lack the tree graphic on their hat, which is where Dipper writes their identifying numbers. Also, Paper Jam Dipper is very different from the rest. On top of that, they look a little desaturated in color compared to the original Dipper.
- The Unintelligible: Paper Jam Dipper can only communicate in incoherent "NYANG NYANG NYANG" noises.
- Unfortunate Name: Dipper originally wanted to call the first clone, "Number Two." The clone himself realized this, and rejected the idea in favor of "Tyrone," a name Dipper had always wanted.
- Weaksauce Weakness: The clones can be destroyed with liquids, namely water and soda.
- What Happened to the Mouse?: Many fans wondered what happened to Number 3 and 4 since they were no destroyed on screen with the others. We find out in the final episode credits that they're now living out in the woods, having taken precautions to not be exposed to rain.
- You Are Number 6: Played straight with all the clones except Paper Jam Dipper and Number Two, who is called Tyrone.
Voiced by: Alex HirschSir Lord Quentin Trembley III, Esq., is a mysterious figure involved in the many riddles of Gravity Falls and America itself.
- Back for the Finale: Appears in the credit montage for the finale, where we see that Trembley is still exploring the forests of Gravity Falls on his horse. And still not wearing pants.
- Badass Mustache
- Bow Ties Are Cool
- Bunny-Ears Lawyer: For all his eccentricities, Trembley is a brilliant man.
- The Caligula: Elected by a landslide (as in the other candidates were literally buried by one), he proceeded to ban pants, declare war on pancakes, and appoint babies to the Supreme Court. He was eventually deposed, replaced by William Henry Harrison, and all evidence of his term stricken from the national record. He ended up founding Gravity Falls, being deposed again and finally encasing himself in peanut brittle, in an attempt to live forever - which, amazingly enough, worked.
- Cloud Cuckoolander: He waged war on pancakes.
- The Cuckoo Lander Was Right: Peanut brittle really did make him immortal. The treasure hunt to find him is also designed so that only a silly person can unravel the clues, thus invoking this trope. And his warning about man-eating spiders becomes more sensible in "Roadside Attraction" when one such spider tries to eat Stan.
- Cool Old Guy: Despite his apparent insanity, he helps Dipper and Mabel greatly, and finds a kindred spirit in the latter.
- Creator Cameo: Yet another character voiced by Hirsch.
- Extreme Omnivore: Resigned by eating a salamander and jumping out the window.
- Genius Ditz: Despite being a Cloud Cuckoolander, he succeeded at putting himself in suspended animation with peanut brittle of all things and set up a treasure hunt so that he could be found 150 years later.
- Hoist by His Own Petard: He was kicked out of office by the babies he hired to run the Supreme Court.
- Human Popsicle: Kept in suspended animation for 150 years, thanks to peanut brittle.
- Landslide Election: A literal one (that killed every other candidate).
- Nice Guy: Cloud Cuckoolander tendencies aside he truly is a nice guy.
- Nice Job Breaking It, Hero!: One of the laws he passed while he was in office dictates that having physical ownership of a property deed (regardless of whether or not it's your name on the document) makes it and all under its domain yours. Finders-Keepers. Fair enough, but this law makes it possible for Gideon to steal the Mystery Shack during the first season finale.
- Our Presidents Are Different: President Buffoon bordering on President Lunatic, hence why the United States did everything possible to erase him from the historical record.
- Sealed Good in a Can: Once freed, he is ultimately responsible for saving the day. To the United States government, he's more of a Sealed Loose Cannon.
- The Southpaw
- Unperson: In an effort to cover up the embarrassment of Trembley's presidential career, the US government erased Trembley from history, filling in the historical hole with William Henry Harrison and village idiot Nathaniel Northwest.
- Verbal Tic: Journal 3 reveals he yells "AMERICA" every three minutes like clockwork.
- What Happened to the Mouse?: Disappears once again at the end of "Irrational Treasure", and isnt seen for the rest of the series, with no word on what his fate was. We finally find out in the final episode, where he gets a cameo in the credits, still roaming the forest seemingly no worse for wear.
- The Wonka: Back in his president days. Deconstructed, too: his lack of sanity got him fired, despite being efficient.
Voiced by: Justin RoilandBlendin Blenjamin Blandin is a time traveler who was sent to stop a series of time anomalies that were supposed to happen during the Mystery Fair.
- Adorkable: The beyond awkward photo on his ID card depicts him smiling an incredibly nervous, toothy smile, and he's sweating profusely.
- Alliterative Name: Blendin Blandin. It borders on a Repetitive Name.
- Bald of Evil: Not a single hair on his head. Near the end of "Blendin's Game," however, the twins grant him some hair in addition to his job back.
- Berserk Button: Making fun of his time abilities, not remembering his name, Wasteful Wishing are things that will make him raise his voice.
- Butt Monkey: From start to finish, he's an utter joke.
- Crouching Moron, Hidden Badass: Zigzagged in "Blendin's Game". First he manages to escape from a previously unescapable prison, only to easily be caught once out. Afterwards he manages to keep up with the Pines twins in the death battle, only to foolishly blow the last contest by getting cocky. Really he's certainly toughened up in prison, but he's only this some of the time.
- Deal with the Devil: Possessed by Bill so the latter could cause Weirdmageddon. Journal 3 reveals in a ciphered letter that after suffering mockery from the entire TPAES, Time Baby included, for losing Globnar to a pair of twelve-year olds, Bill came to him in a dream and promised him that the Time Baby would never bother him again.
- Early-Bird Cameo: Appears in the background of of the first three episodes. See Self-Fulfilling Prophecy below.
- Foreshadowing: He is shown in the promo art for the second season with yellow eyes putting a finger to his mouth beside a bunch of monsters. this is foreshadowing Bill taking possession of him and ensuring his role in the apocalypse.
- The Friend Nobody Likes: His fellow Time Agents hate having to deal with him and the messes he makes, and they try their best to hurry their capture of the Twins if it means they can get away from guarding Blendin. Get's worse after Globnar, where their teasing him for losing to children (Including earning the nickname No-Frendin Blandin from the Time Baby himself) leads him to making a deal with Bill, and even worse after that, where he's declared an outlaw for his part in the whole debacle.
- Gadget Watches: Blendin's watch also functions as a communicator and a cloaking device.
- Goggles Do Nothing: He's wearing them constantly but it's unclear what they do. In "Dipper and Mabel vs. the Future", they hide the fact that he's under Bill Cipher's control.
- Harmless Villain: Generally a mess. His attempts to correct this by training in prison fail miserably.Mabel: He's too sad to be a bad guy.
- Ineffectual Sympathetic Villain: As Mabel pointed out, he's too pitiful to actually hate.
- Jerkass: Childishly mocks one of his captors' mundane, but sweet wish to retire early. Dipper and Mabel helping him out indicates he will get better.
- Heel–Face Turn: Blendin becomes a more decent person to the Mystery Twins when they own up to their mistake and get him his job back. He does come back claiming he owes Mabel a favor, only to reveal Bill Cipher possessed him. But he is the first to organize a plan to defeat Bill even though it goes horribly wrong.
- Large Ham: "MEMORY WIPE!!!"
- Man Child:
- Slips into this territory when Dipper convinces him to take a break from his work and relax, and ride one of the rides at the fair. He's shown yelling jubilantly as he does so.
- He also takes it personally when Mabel doubts his claim to be a time traveler, and he's awfully quick to try to impress and convince two kids he's never met before.
- His boasting costs him the Globnar.
- Meaningful Name: He certainly blends in to his surroundings when time traveling.
- Nervous Wreck: He's as timid and easily-upset as they get, and it's partially thanks to this he's so easily manipulated.
- No Indoor Voice: Not surprising, considering that he's voiced by Justin Roiland. At one point during "Blendin's Game", Lolph mutes him mid-sentence to spare himself.
- Self-Fulfilling Prophecy: Blendin is sent back to prevent a series of time anomalies that occurred only because Dipper and Mabel got their hands on his time machine.
- SpaceX: Or "Time X".
- Stable Time Loop: More of a Stable Time Mobius Strip. Blendin travels back in time to fix a bunch of paradoxes, but he can't find any. This leads him to get stressed out enough to take some time off, allowing Dipper to steal his time machine and the subsequent fight with Mable causes the paradoxes that he was initially sent out to fix. Then Blendin is arrested and forced to clean up the paradoxes, which he does before past Blendin can find them, which leads to the beginning of the episode again.
- Sole Survivor: He's seemingly the only member of the Time Paradox Avoidance Enforcement Squadron to survive their confrontation with Bill (besides Time Baby, who will regenerate eventually). Subverted, as TPAES Members only send Hard-Light Representations of themselves on dangerous missions, meaning that they were all still stationed in the future.
- Strange Minds Think Alike: Agrees with Soos that using the Time Wish to make an infinite pizza is a good call.
- Time Police: He's an agent of the Time Paradox Avoidance Enforcement Squadron, and his job is to correct time anomalies.
- Unwitting Pawn: Gets possessed by Bill Cipher in "Dipper and Mabel vs the Future".
- We Will Meet Again: After the Pines inadvertently ruin his life, he swears temporal revenge by keeping their parents from meeting. They write him off when they realize he hasn't changed the past already.
- What Happened to the Mouse?: In Weirdmageddon Part 1, Blendin escapes by using the time machine. Journal 3 reveals that his part in Weirdmageddon caused the TPAES to declare him an outlaw, and after some time hopping, he ultimately ended up in the 1800s, becoming a watch repairman after his Time Tape was destroyed.
Voiced by: Dave WittenbergA giant, time-devouring, baby-like monster currently frozen in Antarctica. For unknown reasons, he will wage a war in the distant future, while also leading human time travelers to fix timeline anomalies.
- Always a Bigger Fish: A fairly unorthodox example. In Dipper's and Mabel's Guide to Mystery and Nonstop Fun!, Bill Cipher claims that Time Baby is an even worse entity than he is. That same book has a coded message that says that even in a future where he reigns supreme, Time Baby is "worried about Bill". As a sign of just how powerful Bill has become upon gaining physical form, he completely destroys Time Baby in "Weirdmageddon Part 1". Although he'll regenerate eventually.
- Anti-Villain: Time Baby may be a tyrant, but everything he does is to protect the universe and ensure the space-time continuum works properly.
- Bad Boss: Implied to be this. When Blendin Blandin failed his mission, he was afraid of the Time Baby and begged him for mercy.
- Bad Future: In the distant future, Time Baby is the supreme ruler of Earth.
- Big Brother Is Watching You: Since he has control over the universe in the future, this was inevitable. In the first few minutes of "Blendin's Game", there's even a poster in the background that says "Time Baby Is Watching You".
- Creepy Child: He is still a baby, yet he's also a brutal dictator with god-like powers.
- Disproportionate Retribution: Casually murders a random member of the audience for speaking out when he said "silence".
- Enfante Terrible: He's a baby with incredible powers, and also a cruel autocrat.
- Even Evil Has Standards: For a given measure of evil though, he will not stand for the destruction of the universe and the fabric of space-time. If anything, he exists to do the exact opposite.
- Evil Sounds Deep: Despite being a baby, he has a very deep voice.
- Evil Versus Evil: Bill Cipher at least hates his guts (see Last of His Kind) - Dipper and Mabel's Guide to Mystery and Nonstop Fun! suggests that the feeling is mutual.
- Eye Beams: His main form of attack.
- From a Single Cell: Although Bill disintegrates him, a cryptogram states Time Baby will reform from component molecules, though it'll take a millennium.
- Humanoid Abomination: He looks like a human baby, but he is gigantic, has incredible god-like powers, and is very intelligent. According to Bill, he's the last child of an extinct race of Time Giants.
- Human Popsicle: He is currently frozen in Antarctica.
- Last of His Kind: Is the last child born to a now extinct race of Time Giants.
- Lesser of Two Evils: Time Baby tries (and fails) to stop Bill Cipher during "Weirdmageddon Part 1", as his cosmic antics could destroy the universe.
- Little Miss Badass: Hell yeah, he is a time giant and can win a war all by himself.
- Noble Demon: He promises a free time wish that can do literally anything (even, say, wipe him from existence) to anyone who wins Globnar, and follows through. Granted, even surviving Globnar is pretty tough. He also gave Blendin his job back after Dipper and Mabel asked him to, and accepted them giving their Time Wish to someone else.
- Psychopathic Manchild: He's a ruthless dictator, but can't help but exhibit the habits of a baby. This includes sucking on his foot, or stubbornly whining when it's time to drink cosmic sand.Time Baby: I have a very important nap to get to, so let's make this quick.
- Reality Warper: Can create Time Orbs capable of making any wish possible.
- Sealed Evil in a Can: He's frozen in Antarctica for now. But in the future, global warming will free him, allowing him to conquer the world.
- Time Police: He's the leader of the Time Paradox Avoidance Enforcement Squadron, who fix time anomalies and arrest violators of "the laws of space-time".
- Time Travel: Given his title and and powers, he can probably travel through space and time.
Rumble Mc Skirmish
Voiced by: Brian BloomRumble McSkirmish is a playable fighter in an arcade game called Fight Fighters. Dipper brought him into the real world by using the ultimate power code that he found on the lower left side of the arcade game.
- AcCENT Upon the Wrong SylLABle: Rumble talks like this all the time.
- Anti-Villain: He chases Robbie down through town, intending to kill him, but he only turns on Dipper when he realizes that he had been lead astray. It's obvious from his internal monologue that he was ashamed of this.
- Always a Bigger Fish: After his initial appearance, he's on the recieving end of TWO of these, once by Giffany when she temporarily passes through his arcade machine and casually curbstomps him, and once again in the finale where he is once again out in the real world, and finds that all his fighting skills are useless against Bill Cipher.
- Back for the Finale: He came back out of his game thanks to Weirdmageddon.
- Big "NO!": When he defeats Dipper, he is erased and sent back to the arcade machine. This is his reaction.
- Bilingual Bonus: His victory pose mimics that of Akuma. However, unlike Akuma's kanji 天 (meaning Heaven), the kanji on Rumble's back is 屁 (meaning a fart, or alternatively something so worthless it's not worth considering - either interpretation satisfies the joke).
- Black and White Insanity: From his perspective, you're either a good guy or a bad guy who deserves to be beaten to death and probably murdered somebody's father. As he's from a game where people do literally nothing but briefly yell then beat the crap out of each other, it's arguably Blue and Orange Morality as well.
- "Blind Idiot" Translation: Half of his dialogue is nonsense that's implied to be a result of his game being poorly translated in-universe.
- Calling Your Attacks: "SUPER POWER NINJA TURBO NEO ULTRA HYPER MEGA MULTI ALPHA META EXTRA UBER PREFIX COMBO!!"
- "FIST! PUUNCH! RAAAAAAAAAIIIN!!!"
- Captain Ersatz: He appears to be a merge of multiple Street Fighter characters. He has the blonde hair like Ken, the fighting stance similar to Ryu, Ken and the other Shotoclones, and an eyepatch like Sagat.
- Catchphrase: "Winners don't lose!"
- Colony Drop: His Fist Punch Rain, which makes lots of closed fists to fall from the sky.
- Combat Pragmatist: As a parody of Streets of Rage or Final Fight, he's a fan of picking up objects from the street and swinging them at his enemies.
- Curb-Stomp Battle: Beats the crap out of Dipper with an absurd amount of punches. Rumble himself is on the receiving end of one during his brief cameo in "Soos and the Real Girl".
- Does Not Like Shoes: Just like Ryu and Ken.
- Everything Makes a Mushroom: A pixelated fist-shaped mushroom cloud results from knocking out Dipper with his combo finisher.
- Eyepatch of Power: Probably as a shout-out to another SF character, Sagat. Surprisingly, Rumble's eyepatch does not switch eyes as he changes direction.
- Face Death with Dignity: Despite Bill's Weirdmageddon being what brought him to life in his last appearance, meaning he'd disappear along with everything else, he still fights on the heroes' side and goes out with a thumbs up after Bill meets his end. (Though "death" may be an overstatement since he probably just went back to his arcade machine upon victory again.)
- The Game Come to Life: He's the page picture for a reason, as the whole premise of "Fight Fighters" is Dipper releasing him from the arcade machine to be his bodyguard. Bill's Weirdmageddon somehow brings him to real life again.
- Giving Someone the Pointer Finger: And what a pointer finger it is.If Robbie is not the last stage, then it must be... YOOOOOOOOOOU!
- The Great Politics Mess-Up: When talking to Dipper, he demands to be taken to the Soviet Union.Dipper: That's gonna be difficult... for a number of reasons.
- Heel–Face Turn: During Weirdmageddon, he joins the fight against Bill, even though success will send him back into his game, and seems to have learned some humility as well.
- Heroic Sacrifice: Helps the heroes fight Bill Cipher, despite Cipher being the reason he'd come to life that time, meaning if they won, he'd fade away back to his game. He did anyway, and gives a thumbs up as he fades.
- Hyperactive Sprite: Mocked. Dipper runs into some frustration when he asks him to stand completely still, since of course, his Hyperactive Sprite is as still as he gets.
- Knight Templar: Absolutely convinced that Robbie, and later Dipper, are bad guys.
- Large Ham: Shouts most of his dialogue.
- Martial Arts Headband: A red one, like Ryu's.
- Meaningful Name: Each part of his name is a reference to some sort of fighting. EVERY PART.
- Meaningful Rename: After barely surviving Weirdmageddon, he renames himself Humble McSkirmish after learning there are opponents he can't beat on his own.
- Medium Blending: All of his appearances in the episode are as a 16-bit sprite.
- Monster of the Week: Of Fight Fighters.
- Muscles Are Meaningful: Caused much destruction with his techniques, and when Dipper finally landed a punch on him, it barely took away any of his health.
- Names to Run Away from Really Fast: Both "Rumble" and "Skirmish" relate to brawls and fights, so you can see where this is going.
- Nice Character, Mean Actor: In his game he is a warrior avenging the death of his father at the hands of the evil Dr. Karate. When brought to real life, he is a crazy Knight Templar who would have killed Robbie and Dipper.
- No Indoor Voice: Constantly shouting.
- No Peripheral Vision: Parodied. He can't look up because he has no looking up animation.
- Nonstandard Character Design: His sprite design was created by Paul Robertson.
- Overly Long Name: Journal 3 gives his full name as Rumble Fracas Melee Fisticuffs Slapfight McSkirmish.
- Primary-Color Champion: It's subverted when he steps out of the machine. Otherwise, he is instantly remarkable for his blond hair, red bands and blue pants.
- Punny Name: But also a Name to Run Away From Really Fast.
- Rapid-Fire Fisticuffs: One of his moves is a hundred hand slap.
- Sealed Badass in a Can: He's usually just this when in the arcade machine. He only goes "evil" when Dipper lies to him.
- Shotoclone: Once again, all part of his Captain Ersatz shtick.
- Walking Shirtless Scene: Another similarly to Sagat is that he doesn't wear a typical karate gi, he goes bare-chested the entire time.
- The Worf Effect: In his cameo in "Soos and the Real Girl", .GIFfany zaps him like he was nothing. This is the same guy who utterly trounced Dipper with his karate skills.
- Would Hit a Girl: Challenges .GIFfany to a battle when she briefly crosses through his arcade cabinet. It doesn't end well for him.
- Would Hurt a Child: Had no problem beating up Dipper with a nearly lethal combo attack just because Dipper had lied to him.
- You Killed My Father: And not for the first time, apparently.
The Summerween Trickster
Voiced by: Jeff BennettThe Summerween Trickster is a large, light purple monster with a yellow-green jack-o-lantern mask and the first monster to actually pose a serious threat to the twins' lives.
- Ax-Crazy: HE EATS CHILDREN.
- Berserk Button: Don't "lack Summerween spirit" near this guy. Don't throw candy in the trash, either.
- Child Eater: If Dipper, Mabel, Grenda and Candy fail to meet his candy quota for the night, he'll eat them.
- Dark Is Evil: His appearance is usually combined with flickering lights, and he gives the kids "until the last jack-o-melon is blown out" to get him his candy.
- Death Seeker: Being made up of "Loser candy", he strongly desires to be eaten.
- Disproportionate Retribution: Threatens to kill Mabel and Dipper because they refused to give him candy. And of course, eating children because of the unwanted candy in the city.
- The Dreaded: Just look how terrified Soo's is to learn he's after the twins, while taking in account all the other supernatural creatures they've encountered and beaten.
- Faux Affably Evil: At first. Calm, soft-spoken. Eats a child off-handedly.
- Freudian Excuse: The Summerween Trickster wants revenge for all of the discarded candy that no one liked. All he wanted was for someone to say that he tasted good.
- Guttural Growler: Quite, and his voice gets progressively worse the angrier he gets.
- Humanoid Abomination: A bunch of sapient, rejected Halloween candy that disguises itself as a humanoid being. He becomes more of a straight-up Eldritch Abomination after revealing his true identity.
- I Got a Rock: As an amalgamation of rejected Halloween candy, he is more or less the manifestation of this trope.
- I Just Want to Have Friends: He is the embodiment of lousy candy that gets thrown out. All he ever wanted was for one person to find him delicious.
- Hypocrite: He eats Gorney even though the kid doesn't lack Summerween Spirit just to make a point, although it could be because he was pissed off at the moment.
- Knight of Cerebus: He's the first villain on the show to be played seriously, and has a rather sinister facade.
- Lean and Mean: In his initial form, he's as thin as a broom handle.
- Monster of the Week: Of Summerween.
- Multi-Armed and Dangerous: When it's time to start killing, he becomes less of a man and more of a spider.
- Non-Indicative Name: Called a "Trickster", but he essentially relies on brute force while his threats and desires are incredibly simple and straight-forward.
- Pulling Themselves Together: And they thought they had defeated him...
- Soft-Spoken Sadist
- Tears of Joy: When he finally finds someone (Soos) who thinks he tastes good, and cries tears of candy corn.
- To Serve Man: He has a taste for human children.
- Villain Teleportation: He seemingly can appear anywhere.
- The Worm That Walks: He's made of candy that was discarded because no wanted to eat it.
- Would Hurt a Child: Would eat one, in fact.
- Your Costume Needs Work: Dipper's reaction to his presence at first.
A giant, rampaging beast, with the ability to show a person their worst nightmare.
- Attention Deficit... Ooh, Shiny!: Gets distracted by a novelty rubber singing fish for an indeterminate amount of time.
- Generation Xerox: When his evil eye is turned on him, he sees his worst fear, himself in a mirror with glasses telling him that he's turned into his father.
- Glowing Eyes of Doom
- Hoist by His Own Petard: When his eye is turned on him he sees himself as his father, and he runs off screaming.
- I Am Not My Father: The gremloblin's worst nightmare is that he becomes his father.
- Mind Rape: If you look into his eyes, you see your worst nightmare. Two tourists are hospitalized due to him.
- Monster of the Week: Of Boss Mabel.
- Nonhuman Humanoid Hybrid: Part gremlin, part goblin.
- New Powers as the Plot Demands: He can breath fire and grow demon wings completely out of nowhere.
- Red Eyes, Take Warning
- Weaksauce Weakness: Inverted. Mabel and Dipper think the Gremloblin is weak to water due to the awkward grammar the Author used in the journal, but it turns out it only makes him stronger.
Tumbleweed Terror Pinball Game
Voiced by: John DiMaggioA pinball game with a Wild West theme and a sentient, talking cowboy skull. When Soos gets the high score by tilting with Dipper and Mabel's help, the skull sucks them into the game.
- Achilles' Heel: The main power switch. Not only shuts down the entire system, but also releases those trapped.
- Badass Mustache: The skull, again.
- Berserk Button: Hates being tilted. As a pinball machine, his whole world is pinball, so he's not too happy when you mess with his only purpose.
- Glowing Eyes of Doom: The cowboy skull.
- Gold Tooth
- Nice Hat: The cowboy hat worn by the 'talking skeleton guy'.
- No Fair Cheating: Punishes tilting with sucking the offenders into the game and killing them.
- Red Eyes, Take Warning
- Shout-Out: Ballway Games is most likely a Portmanteau of Bally Electronics and Midway Games, two popular pinball manufacturers in the late 80s to mid-90s, when pinball was at its peak in popularity.note Tumbleweed Terror, in turn, is probably based on the similarly-themed and similarly-alliterated Cactus Canyon.
- Vacuum Mouth
Voiced by: Matt ChapmanA young Latino (likely Mexican) merman who winds up trapped in Gravity Falls public pool. Luckily Mabel befriends him and helps break him out.
- Arranged Marriage: In "The Society of the Blind Eye", Mermando sends to Mabel the news of his arranged marriage to the queen of manatees, in order to prevent a revolt in the sea.
- Blue Blood: Implied. He seems to be a merman prince if he was able to get married to the manatee queen in order to prevent a revolt.
- Dramatic Wind: A regular John Redcorn of the sea.
- First Kiss: He was Mabel's.
- Girl of the Week: Gender flipped. He's the "Guy of the week" for Mabel.
- Interspecies Romance: With Mabel. The ship sank in "The Society of the Blind Eye" when Mermando was revealed to be getting married.
- Large Ham: He has his moments.
- Latin Lover: Although technically not Latin, apparently just being from a part of the ocean near Mexico, he has both the appearance and the voice. And Mabel was soon swooning over him.
- Leitmotif: The guitar. Sometimes he even plays the music himself on a guitar he... somehow plucks out of the water.
- Long-Haired Pretty Boy: Mabel sure thinks so.
- Message in a Bottle: How he keeps in touch with Mabel after returning home.
- Misunderstood Loner with a Heart of Gold: He's a "mysterious loner" only because he's hiding the fact that he's a merman from people.
- Nice Guy: Really an all around nice guy, he is genuinely very grateful to all those who try and help him.
- Our Mermaids Are Different: Among other things, he has, like... 17 hearts. "Horrifying, but true!"
- Punny Name: From "Merman" which he is, and "ando", the termination of several latin names (Fernando, Armando, Rolando...)
- There's No Place Like Home: All he wants is to return home to his family in the ocean.
- Walking Shirtless Scene: Or rather, swimming.
- Younger Than He Looks: His voice and little mustache hairs give the impression of a teenager. He's twelve. Mermen's voices change when they're three.
Chubby Z: "Yo. dawg! Who is this big, round, bright fool?"
'Mabel: "That, Chubby Z, is the sun."
Chubby Z: "That fool is making my eyes burn straight painful! I'm gonna stare that fool down."A good looking, astonishingly dim Boy Band made up of clones. Its members are Greggy C, Creggy G, Leggy P, Chubby Z, and Deep Chris.
- Adorkable: Their cluelessness is really endearing.
- Born in the Wrong Century: Downplayed: Dipper describes them as "the boy-band that came a decade too late".
- Boy Band: Your typical band made up of five Pretty Boys that have a ton of screaming fangirls. Also parodied, since any jokes about how boy bands are "manufactured" by the music industry are quite literal in their case due to being clones.
- Brainless Beauty: Male examples, but to be fair, they spent their whole entire lives in a cage.
- Creator Cameo: Alex Hirsch provides some of their voice work, as does episode co-writer Matt Chapman.
- Crouching Moron, Hidden Badass: Despite Candy's prediction that they won't last a week in the wild, they all return during Weirdmageddon - somehow having not only survived in the wilderness for several months, but also surviving the various dangers of Weirdmageddon until they could get to the Mystery Shack.
- Dance Battler: Except not really.Oh no! They're aggressively dancing at us!
- Dumb Blonde: None of them seem to be that smart.
- Extreme Doormat: They are extremely submissive and timid, which is why they didn't stand up to their manager or Mabel when they were trapped with them.
- Fanservice: In-universe.
- Five-Man Band: Sev'ral Times is a literal example.
- Innocent Blue Eyes: With visible irises as well.
- Man Child: The result of being raised in a giant hamster cage and verbally abused by their evil manager.
- Meaningful Name: Sev'ral Timez were cloned from the same template several times. It's also a parody of "One Direction": instead of a word denoting singular followed by a word denoting space, it's a word denoting plural followed by a word denoting time.
- Mundane Object Amazement: Frequently. "Yo, I heard about these things called 'trees?!' I dunno WHAT they are, but I wanna KISS one!"
- Nice Guy: The bandmates are portrayed as friendly, kind, respectful, and pretty sweet people. Jokingly suggested with the lyric "WE'RE NON-THREATENING!"
- Non-Indicative Name: Chubby Z really doesn't look all that chubby.
- Non-Standard Character Design: They're the only characters so far with visible irises.
- Non-Uniform Uniform: Probably so you can tell them apart.
- Odd Name Out: Deep Chris.
- Our Clones Are Identical: Only their clothes and hairstyle visibly separates them.
- The Pollyanna: All of the members of Sev'ral Timez are really cheerful and surprisingly adjusted, considering their situation.
- Pretty Boys
- Raised by Wolves: Raised in a giant hamster cage, so they tend to act like hamsters.
- Xtreme Kool Letterz
A prehistoric beast, unleashed on Gravity Falls after millions of years of being suspended in tree sap.
- All Flyers Are Birds: Shrieks like a hawk, has eagle-like feet, and makes chicken-like nests. At least it's a quadruped.
- Ambiguous Gender: It has eggs and seeing as there's no sign of another pterodactyl in the area, we can assume at first that it laid the eggs, which would designate it as a female. However, it's consistently referred to by male pronouns and seeing as some of the other prehistoric creatures thawed out offscreen, it's possible that its mate did too and we just didn't see it.
- Badass Normal: Compared to the other villainous beasts, who had some element of the supernatural to them, it's just a "regular" "dinosaur".
- The Cameo: Appears briefly in "Weirdmageddon part 1", arguably due to Bill's titular calamity.
- Monster is a Mommy: She turns out to have a nest full of eggs.
- Monster of the Week: Of Land Before Swine.
- Non-Malicious Monster: Implied, seeing as it has a nest full of eggs (one of which hatches onscreen), suggesting that it's simply a mother who's looking to feed her young.
- Prehistoric Monster: Certainly plays the part.
- Ptero Soarer: Looks like an unholy mixture of all stereotypes, down to the scaly skin, being called a "dinosaur", having eagle-like hindlimbs, leathery wings, having a Pteranodon crest alongside rather mismatched teeth, making chicken-like nests and having zero to no body fat. Strangely enough, though, it is quadrupedal like a real pterosaur.
- Reptiles Are Abhorrent: Has rather unrealistic slit pupils and makes lizardy noises.
Xyler and Craz
Voice by: John Roberts and Greg Cipes
Craz: "Wow, radical!"
Xyler: "I also think it's radical!"Two 80's style boys from the movie Dream Boy High. Mabel appears to have a crush on them. They were brought to life by Mabel's imagination.
- '80s Hair: It goes well with their entire appearance, which comes from an 80's movie.
- Anti-Nihilist: Upon realizing they can exist outside of Mabel's mind or her Lotus-Eater Machine, they have a bit of an existential crisis. They promptly decide it's actually rather radical.
- Art Shift: During their part of Mabel's fantasy, the backgrounds are rendered to resemble the painted cels of an 80s cartoon rather than Gravity Falls's usual style.
- Brainless Beauties: On Sev'ral Timez level.
- The Bus Came Back: They returned in Weirdmageddon Part 2: Escape from Reality in Mabel's prison bubble, a world where all of her fantasies become real.
- Came Back Strong: Restored by Mabel's imagination after Bill destroys them, plus they have their instruments which helps against Bill.
- Cloud Cuckoolanders: They believe everything around them to be extremely radical, including Mabel's most mundane actions.
- Dark-Skinned Blond: Xyler.
- The Ditzes: So much. When Bill is about to attack them, they start dancing in place.
- Genius Ditz: Can you imagine they both have doctorates in criminal and international law? Xyler is also able to quote French philosopher Jean-Paul Sartre off the cuff.
- Guest-Star Party Member: Join Dipper, Mabel and Soos when they were trying to stop Bill Cipher and even join the other three in their final attack against Bill up until the moment they left Stan's mind.
- Hidden Depths: Upon faced with their sudden material existence and the horrors of Bill's "Weirdmageddon", Xyler has a brief moment of intellectual clarity.Xyler: Are we real? Is this reality? Jean-Paul Sartre postulated that every existing thing is born without reason, prolongs itself out of weakness, and dies by chance.
Craz: Totally righteous, bro!
Xyler: I knoooow!
- Considering they're her idea of perfect boys, it says something about Mabel's standards.
- Mr. Fanservice: To Mabel, anyway.
- Non-Standard Character Design: Just look at their picture and compare them to the characters on the show.
- Totally Radical: In-universe, they use deliberately dated surfer slang.
- Tulpa: When Mabel's prison bubble bursts, they somehow crawl out of the wreckage in the real world, wondering if this means they're real now. The answer is apparently "no": they disappear later when Bill is defeated, despite the code from the previous episode describing something they could have only done if they'd survived.
- Undying Loyalty: Being previously imagined, they're the only fantasies in Mabeland to not turn evil when the others begin revolting.
- Xtreme Kool Letterz: Probably the reason they are called Xyler and Craz
- You Gotta Have Blue Hair: Craz.
A short and hairy humanoid monster who tried to steal Dipper and Mabel's Summerween candy.
- Abnormal Ammo: At one point, he resorts to throwing the candy he's eating at Dipper.
- Attention Deficit... Ooh, Shiny!: Was stopped when Dipper distracted him with a television.
- Big Eater: Not even a golf club was spared from his hunger.
- Extreme Omnivore: At the end of the episode, he is seen eating golf clubs and seemingly enjoying them.
- Monstrous Humanoid: Mabel compares his appearance to that of a naked little man.
- Shout-Out: Bares quite a resemblance to Krumm from Aaahh!!! Real Monsters with his gross hairy nakedness and prominent eyes.
A mysterious mailbox in the middle of the forest that can answer any questions asked of it.
- The Omniscient: Can answer any question placed inside it.
- Self-Destruct Mechanism: The mailbox destroys itself when Mabel placed a video of her shoving gummy worms up her nose.
- Story-Breaker Power: Given that its omniscience meant it could answer literally any question, including the identity of the journal's author, you HAD to figure that something or someone would intervene to prevent it from revealing one of the big plot points of Season 2. Cue Mabel and her gummy worms video offending it enough to trigger a self-destruct.
A resident in Gravity Falls who for some reason is always facing left.
- Cyanide Pill: When Lefty's secret is revealed, the aliens controlling him commit suicide by swallowing glowing cubes that vaporize them instantly.
- Killed Off for Real: When the aliens piloting him are exposed, they all take their suicide cubes, and Lefty himself bursts into flames.
- Leaning on the Fourth Wall: Let's face it, Lefty's entire schtick (that he's actually a robot piloted by aliens, and him only looking left because his right side's nonexistance would be exposed) is only possible in a 2D cartoon.
- Mobile-Suit Human: Turns out to be one controlled by a bunch of tiny aliens.
- Robotic Reveal: See the previous one.
A tall and skinny creature that hides behind people.
- Exactly What It Says on the Tin: It hides behind people.
- Fearsome Critters: The Hide-Behind is based on a creature from American folklore, though the one from the stories is a bear like creature that sucks in its stomach to hide behind things.
- He Who Must Not Be Seen: Invoked. As indicated in its name, the Hide Behind is rarely, if ever, actually seen by anyone.
- Lean and Mean: Though he appears to be more mischievous than malicious.
The Tooth Monster
'"You have disturbed my slumber. Enter my mouth, children! ENTER YOUR DESTINY!" (spoken backwards)The origin of a giant human tooth found on the shores of the Gravity Falls Lake. Is in fact a giant floating head with an island growing on it, which sleeps in the lake and goes after Mabel and Dipper when they "disturb its slumber."
- Black Speech: Its speech is reversed, creating the impression of this.
- Oracular Head: Of gigantic proportions.
- Our Monsters Are Weird: A sentient, bodyless thing the size of a small lake island.
- That's No Moon!: That little island in the lake? It's not an island...
- To Serve Man: It fully intended to eat Dipper and Mabel for disturbing it.
- Turtle Island: Only this thing is no turtle.
A mutant cow on display at the Gravity Falls Petting Zoo. Has five extra legs due to the pollution caused by a mud flap factory's runoff.
- Back for the Finale: Appears in a cameo near the end of the last episode as one of the creatures waving Dipper and Mabel goodbye.
- Body Horror: Three of her extra legs are growing out of her back, with another growing out of each side.
- Eat the Dog: The owner of the Petting Zoo planned on eating her "Come cow-eatin' season."
- Eye Beams: Thanks, radioactive material!
- Nonindicative Name: Octavia the Eight-Legged Cow has nine legs.
- Overly Long Tongue: As revealed at the end.
The Zombie Horde
A group of zombies summoned by Dipper, while trying to demonstrate the journal's power.
- Alien Blood: It glows green.
- Everything's Deader with Zombies: They're corpses brought to life by magic, though if there's a way for the summoner to control them is unspecified. What they're trying to do is somewhat unclear: when they get Soos he's simply turned into one of them, but zombie Soos mentions wanting to eat brains.
- Glowing Eyes of Doom: Their eyes glow green as well.
- Monster of the Week: Of Scary-oke.
- No Body Left Behind: Their bodies are shown turning to dust after they die again.
- The Virus: Soos was infected, though it didn't alter his personality and intelligence much.
- Your Head A-Splode: Singing in three-part harmony causes their heads to explode.
Experiment 210/The Shape Shifter
Voiced by: Mark Hamill (fake author form, true form)A monstrous shape-changer discovered in the author's underground bunker.
- Ax-Crazy: Tries to murder four innocent people just so he could steal the journal.
- Alien Blood: It's green.
- Bitch in Sheep's Clothing: He uses his shape-shifting powers to deceive the group.
- Continuity Cavalcade: While looking through Dipper's journal, he takes on the forms of the Gremloblin, a gnome, and the Hide-Behind.
- Expy: He's a PG version of The Thing.
- Freudian Excuse: Possibly, it is revealed in "A Tale of Two Stans" that the author began experimenting on him when he was a newborn, possibly warping his mind to the monster he is today
- Good Thing You Can Heal: According to him while impersonating the Author, he is capable of regenerating.
- Kill It with Ice: Not killed, per se; but since an iron cage couldn't hold him, the gang has to resort to putting him in a cryogenic stasis pod the Author prepared for him once he got too powerful. Ironic, considering his possible inspiration.
- Knight of Cerebus: More so than even Bill. Not only is he not Played for Laughs, but it's implied that he's willing to kill the whole group.
- Lack of Empathy: Sees no problem in murdering a group of innocent people to escape from the bunker he's trapped in.
- Monster of the Week: Of Into the Bunker.
- Mood-Swinger: Loses his patience insanely fast.
- Our Monsters Are Weird: His design is very alien and non-standard even for this show, and that's not including the bizarre forms he takes. Probably the worst of these is the unholy mesh of Dipper and Mabel he used to pursue them.
- Sealed Evil in a Can: He escaped his cage, but was still trapped inside the the author's bunker until the group opened it up. He's put back inside a cryostasis chamber the author made at the end of the episode.
- Shapeshifter Swan Song: After being trapped in the cryostasis chamber, he transforms into random forms in an attempt to escape which ended with taking on the form of Dipper screaming before being frozen to give Dipper one last freak out.
- The Sociopath: Unlike other monsters he's not some mindless beast, he's just evil.
- Spot the Imposter: Impersonates Wendy to confuse Dipper, but doesn't have a good enough knowledge of their relationship to pull it off.
- Starfish Aliens: Journal 3 heavily implies that the Shapeshifter's egg came from a container of alien specimens in the UFO that crashed into Gravity Falls.
- Would Hurt a Child: Went after the twins after transforming them into a deformed fusion of themselves.
- Would Hit a Girl: Punches Wendy in the face during their fight for the journal, and tried to kill her beforehand.
- Vagueness Is Coming: His final words to Dipper about prying too deep into Gravity Falls lore before he's put in stasis.
- Voluntary Shapeshifter: His main ability.
Voiced by: Patton Oswalt (Franz), Jim Cummings (Pirate), John O'Hurley (Knight), Kevin Michael Richardson (Big Henry).Tiny creatures who inhabit the local mini-golf course at "Ye Olde Discount Putt Hutt", and fight over whose hole is the best.
- Adorkable: All of them, but Franz gets a special mention.
- Affably Evil: Being voiced by Patton Oswalt naturally leads to Franz sounding quite friendly no matter what he's doing.
- Ax-Crazy: The little bastards are a tad bit unhinged.
- Cute and Psycho: They're small and adorable, but will go to any length to get what they want. They tried to shred Pacifica to get the Mabel's sticker, and when she eats it they decide to cut her open to get it.
- Enemy Mine: They finally realize a reason to temporarily band together and end their rivalry when Mabel eats the sticker she promised she'd give them — namely, cutting Mabel open and retrieving the sticker from her insides. By the end of the episode, they've bonded over their shared love of directing golf balls, and perform a big choreographed musical number about it for Sergei... WHO MUST NEVER LEAVE.
- Forgotten Fallen Friend: Outside of Polly, no one seems torn up by Big Henry's death.
- Gentle Giant: Big Henry was the largest by comparison and the nicest.
- Heroic Sacrifice: Big Henry pushes a ball through a gas-filled mine shaft just to get the ball through their hole and improve its chances of getting the sticker.
- Karma Houdini: They get no punishment for constantly cheating in golf matches or attempting to murder three children. Ironically, Big Henry, the nicest of them, is the one to die.
- Large Ham: All of them.
- Lilliputians: Obviously.
- Monster of the Week: Of The Golf War.
- Non-Standard Character Design: Although they all have large multicolored and pockmarked heads (like golf balls, of course), the Knight of Weiners Castle has a squinty, exaggerated face with stubble and long brown hair, while Big Henry is a Top-Heavy Guy with huge arms.
- Painting the Frost on Windows: They are the ones who control the balls at the mini-golf course.
- Psychopathic Manchild: They turn on the twins over a sticker.
- Punny Name: They're lilliputians who live in a mini-golf course. Lampshaded by Franz that the name makes more sense when written down.
- Rube Goldberg Device: The methods they use to control the golf balls are essentially this. Dipper even lampshades it by calling Franz's demonstration of how they do it "needlessly complicated".
- Senseless Sacrifice: Big Henry's sacrifice was this as in the end, no one won the sticker.
- Serious Business: Who runs the most fun hole to play on the entire course? It's apparently worth getting into tiny adorable fist-fights every night and threatening to murder children and ex-Soviet golfing instructors, just for any semblance of approval.
- The Theme Park Version: Many of the Lilliputtians derive their costumes from the national stereotypes of their holes' motifs — Franz and the other Lillputtians inside the windmill are dressed in traditional Dutch clothing and have blond bowlcuts, whereas the Lilliputtians from the miniature Eiffel Tower sport berets, striped shirts, and moustaches. Justified, as they do live in a theme park.
Voiced by: Jessica DiCiccoThe love interest of the Japanese Dating Sim game Romance Academy 7. Also happens to be sentient, and rather possessive of her player.
- Adorkable: Especially when Soos compliments her, or when she's wearing her train conductor uniform.
- A.I. is a Crapshoot: She reveals that in the past, her developers found out that something was gravely wrong with her and tried to delete her. She deleted them instead.
- Always a Bigger Fish: Blasted Rumble while in his arcade game.
- Animesque: Her overall design is very obviously meant to mimic an anime style. Justified since In-Universe, she's a character from a Japanese Dating Sim.
- Badass Adorable: She can possess and power anything electronic, gaining complete control over it. This control is demonstrated to Rumble as he tries to fight .GIFfany while she passes through his arcade game; she casually oneshots him and moves along.
- Brain Uploading: Tried to do this to Soos so he could stay in the game with her forever.
- Break Them by Talking: She tries convincing Soos to accept the above mentioned Brain Uploading by pointing out how real women are unpredictable and that it's likely Melody would want nothing to do with him after this. She's proven wrong after being destroyed.
- Bright Is Not Good: She's brightly colored and all smiles... on the outside.
- Contagious A.I.: Can project herself out of the disc as an Energy Being with Shock and Awe, and also seems able to generate power for anything she's inhabiting. She still needs the disc intact to remain alive even after leaving it, however.
- Curtains Match the Window: Pink eyes and pink hair.
- Cute and Psycho: Aside from already being a Yandere, she also "deleted" her programmers when they tried to delete her.
- Cute is Evil: Definitely.
- Deadly Euphemism: She says she "deleted" her programmers when they tried to delete her, and also threatens to delete Soos and his friends if he won't stay with her.
- Domestic Abuse: Her possessive attitude towards Soos has shades of this and see Break Them by Talking above.
- Entitled to Have You: She seems to believe that whoever buys her game and interacts with her (in this case, Soos) is automatically her boyfriend, and doesn't take it well when Soos expresses interest in another girl.
- Face of an Angel, Mind of a Demon: Seeing how adorable and anime-esque she is, you wouldn't believe she'd be capable of murder to have a boyfriend.
- Faux Affably Evil: Acts like the ideal girlfriend, but it hides how violently possessive she is.
- Hair Decorations: She has a large pink, blue and yellow ribbon on top of her head. If you look closely, the ribbon is actually made out of computer ribbons, the type of cables you might see inside your computer's motherboard or video card.
- Half-Human Hybrid: Her backstory in her game is mentioned by Soos to include a father who is an octopus man. However she displays no cephalopodic traits herself.
- He's Just Hiding: In-Universe. After the events of "Soos and the Real Girl", it's revealed, in Gravity Falls: Journal 3, that after burning her disc, .GIFanny was transported to a Fight Fighters machine, where she and Rumble McSkirmish alternately trade pet names and energy blasts.
- If I Can't Have You...: She won't hesitate to "delete" Soos if he continues resisting her.
- Instant A.I., Just Add Water: If .GIFfany's visual representation of her backstory is at all accurate, her programmers got overzealous and created a genuine artificial intelligence by complete accident while just trying to create a game character. The results speak for themselves: when they try to delete their mistake, she responds in kind.
- It Is Pronounced Tro PAY: Although pronounced her name as "Gif-fany" when she introduces herself, Soos makes reference to this as a Shout-Out to the image format .gif, that has caused some debate about its pronunciation."Or maybe it's pronounced Jif-fany? I was never really sure..."
- Joshikousei: Her design invokes this image, since her game takes place at a school and she wears a Sailor Fuku.
- Kill It with Fire: Soos destroys her disc in a pizza oven. This doesn't kill her though, only trapped her in the arcade.
- Machine Monotone: Her speech sounds cheerful, but still rather stilted and robotic. When she gets angry, her voice sounds more human.
- Manic Pixie Dream Girl: Subverted; she appears to be this on the surface, but she's really a Yandere.
- The Mirror Shows Your True Self: When possessing an animatronic, her reflection on the arcade machine cabinets shows her original pixelated form as she walks past them.
- Monster of the Week: Of Soos and the Real Girl.
- The Most Dangerous Video Game: The game store clerk discourages Soos and the kids from buying the dating sim, as three previous owners returned it before. If that isn't enough, there is even a sticky note (with a table-flipping emoticon to boot) that advises the game be destroyed. Needless to say, they learn the hard way, but Soos does destroy it, and .GIFfany with it, after discovering the kind of character she really was. It was revealed earlier that the game's programmers tried to delete her. She "deleted" them instead.
- Murder the Hypotenuse: She wouldn't have hesitated to kill Soos's friends if it meant getting back with him.
- Nightmare Face: Oh dear GOD!◊
- No Ontological Inertia: Despite leaving Soos's computer to take control of various other electronics, destroying the Romance Academy disc destroys her in turn. Or, at the very least, confines her to a single device.
- Non-Standard Character Design: She looks very Animesque, especially with her pink hair and Sailor Fuku, since she's meant to look like a character from a Japanese Dating Sim. She's also pixellated like Rumble McSkirmish, since they both had the same character designer, Paul Robertson, and her game is implied to be from the late nineties or early 2000s.
- Psycho Ex-Girlfriend: Considers herself Soos's girlfriend after a period of interaction, no doubt like the previous players, and goes berserk when he effectively dumps her.
- Punny Name: Her name is a pun on the .GIF image format, right down to Soos considering its pronunciation.
- Rainbow Lite: The top of her shirt and her bow both have a set of simplistic pink-yellow-aqua stripes.
- Rose-Haired Sweetie: Subverted. She seems like a nice girl at first, but she's actually psychotic and murderous.
- Shock and Awe: Associated with this, given her cybernetic nature. The display she shows concerning how she "deleted" her programmers depicts her electrocuting them. She also briefly gains electric powers when passing through a Fight Fighters cabinet, and attempts to kill Melody and the Pines twins with a blast of lightning from the animatronic she was possessing. When finally confined to a single Fight Fighters cabinet, her ranged attack is described as lightning when she and Rumble take a break from exchanging sweet talk to exchange blows.
- Shout-Out: Her pixellated appearance is likely meant to reference earlier games from the Tokimeki Memorial series of Dating Sims, whose characters had pixellated sprites before the graphics improved. .GIFfany herself resembles Shiori of the same series.
- Some fans have drawn comparisons to .GIFfany and Yuno Gasai based on their obsession with their "loved one" and their need to kill if necessary.
- Soul Jar: A variation: .GIFfany is tied to her disc, no matter how far she gets from it. When it is destroyed, she is destroyed along with it. Or, rather, her ability to freely travel is destroyed, and she winds up confined to a single device.
- Spell My Name with an "S": According to the Gravi-team Falls Tumblr, her name is spelled .GIFfany. And according to creator Alex Hirsch, there's a preceeding dot and the "GIF" is in all caps.
- Stalker with a Crush: To anyone who plays her game, in this case being Soos.
- Vague Age: In-game anyway. She attends "School University", a reference to the sometimes ham-fisted ways translations age up the girls in Japanese works.
- Wing Ding Eyes: Parodied; for every time "her boyfriend" flatters her, her eyes get a new highlight. Soos flatters her so much, her eyes get huge, sparkly and with flowers and cat faces◊.
- Yandere: When Soos falls for the titular real girl, she takes it... badly; obviously the reason why previous customers returned her game.
- You Gotta Have Blue Hair: Her hair is pink, which is fitting since she's already Animesque to begin with. According to concept art◊, she can change it to at least yellow or green.
Voiced by: Matt ChapmanAn ugly witch who steals peoples' hands, including Stan's when he insults her and steals one of her golden watches.
- Abhorrent Admirer: Her look as an old hag and her lack of charisma made her one to both Stan and Ford. Her prospects start looking up after Mabel gives her a book of Dating Advice.
- Canon Immigrant: The special she appeared in was not canon, but her existence apparently is, as she appeared in 'Gravity Falls: Journal 3''.
- Department of Redundancy Department: According to the swap meet pamphlet, the Hand Witch lives in a horrible Hand Witch lair on Hand Witch Mountain.Stan: Stop saying Hand Witch!
- Familiar: Has dozens of disembodied hands at her disposal.
- Freaky Is Cool: When she reads Ford's fortune during their initial meeting at a carnival, she quickly decides to ask him out afterwards, citing his six-fingered hand as a turn-on. Suffice to say, Ford immediately booked it.
- Freudian Excuse: Steals peoples' hands because she's lonely and has trouble making friends. People will only stay around if she's holding their hands hostage.
- Giggling Villain: Has the classic witch cackle.
- Gonk: Besides being rather obviously old, her body is bizarrely short and squat for the size of her hands and head. Not to mention how her feet appear to be a second pair of hands, which don't even match the ones on her arms and are covered in bandages.
- I Just Want to Have Friends: Is crushingly lonely because of her looks and her inherent creepiness.
- Mad Oracle: Ford first encountered her as a Palm Reader at a carnival.
- No Indoor Voice: A very gravelly screech not unlike Matt Chapman's voice for Teen Girl Squad.
- Shout-Out: A rather subtle, yet fitting one: her cloak is very reminiscent of the most iconic article of clothing worn in "Manos" The Hands of Fate.
- Wicked Witch: She's got the looks and uses her powers vindictively, but isn't entirely evil.
Animated monsters that were brought to life by Harry Claymore through black magic.
Society of the Blind Eye
Blind Ivan voiced by: Peter SerafinowiczA secret society that works to keep the abnormalities of Gravity Falls secret. They are led by Blind Ivan.
- Ancient Conspiracy: Well, not that ancient, but it IS a conspiracy to keep things hidden in Gravity Falls.
- Bald of Evil: Blind Ivan, whose baldness shows a scalp covered in tattoos.
- The Dog Was the Mastermind: The leader is an unknown, but the rest of the society is filled out by minor and joke characters. Unknown to all of the members (due to their own memory wipes, no less), their revered founder is Fiddleford McGucket.
- Embarrassing Tattoo: The ending cipher of Society of the Blind Eye identifies "misspelled tattoos" as one member's motivation for joining the Society. It's ambiguous whether this refers to Blind Ivan or the tattooed bouncer.
- Evil Brit: Blind Ivan, complete with having his accent mocked by Mabel.
- Foreshadowing: The society has been alluded to in cryptographs in various media. First mention is in the online game Rumble's Revenge, which mentions "A secret society."
- Forgotten First Meeting: McGucket and Blind Ivan originally met at a carnival, when the former was still working for Ford, and the latter was a teenage carnival maintenance worker going by his real name of Ivan Wexler.
- Hoist by His Own Petard: Dipper uses the memory wiping device to erase the members' memories of the Society's existence and their part in it.
- Human Notepad: In a mild example, Blind Ivan has his bald head tattooed with a diagram dividing the parts of the brain based on what they govern, such as knowledge and more inane and unlikely things like "the ladies" and "cats". He's had these tattoos since he was a mere teenager working as a carnival janitor.
- Ignorance Is Bliss: What they believe. However, Dipper points out the flaws in this, and it's heavily implied that multiple mind wipes are the reason why certain townspeople are so... odd.
- Laser-Guided Amnesia: Their MO.
- Memory-Wiping Crew: How they operate. When a citizen sees one of the town's bizarre creatures, they kidnap and mind wipe them.
- Monster of the Week: Of Society of the Blind Eye.
- Not Even Bothering with the Accent: Ivan has his voice actor's British accent, despite implicitly having lived in Gravity Falls even longer than the other members. He may just be trying to sound dramatic.
- Punny Name: Blind Ivan, leader of the Blind Eye Society.
- Secret Circle of Secrets: A secret order inside Gravity Falls, so secret that even the Author of the Journals knew very little about them.
- Well-Intentioned Extremist: The organisation was founded and exists to provide comfort to those who are tormented by memories of the supernatural events they witnessed. However their ignorance to the side effects, and dogmatic belief that all such memories must be erased regardless of if the subject wants it or not (not to mention their methods involving kidnapping), put them at odds with the heroes.
Voiced by: John DiMaggioA cherub/cupid who moonlights as a rock star.
- Ambiguously Bi: We see him get out of the back of a van with a woman and Tyler, both of whom he calls "groupies".
- Apologetic Attacker: He apologizes twice when he used the visions of heartbreak past"Sorry, Kids, but you've left me no choice. Visions of heartbreak past!"
- Beware the Nice Ones: If he thinks you're interfering with his job, he'll show some of the nastier applications of The Power of Love—like summoning visions of your past heartbreaks to manipulate you.
- Big Beautiful Man: In-Universe, Cupid is popular to pull of A Lady on Each Arm.
- Big Eater: He certainly enjoys eating very big sandwiches.
- Big Fun: He's a big guy who is extremely friendly if you're on his good side.
- Comes Great Responsibility: Realizes that his love potions can have extreme social consequences, so he uses them carefully.
- Evil Counterpart: To Mabel. They both have a similar optimism and love of matchmaking and are both capable of aggression but prefer a peaceful method however unlike Mabel he can be careless and manipulative about his role as a matchmaker when he is angered.
- Hero Antagonist: Much like Blendin's first appearance, he ends up in an antagonistic role for trying to stop the twins from using dangerous assets stolen from him - with the added fact that his attempt to stop the twins comes when Mabel is trying to undo her previous action.
- Interspecies Romance: He can make these happen, as proven when he makes a badger and a snake fall in love. He's also later stated to have a specific Love Potion for interspecies love.
- I Warned You: Mabel ignored his warning about the risks of using his potions."Kid, I tried to tell you. This stuff is way too dangerous."
- Jabba Table Manners: His body was covered in mustard when he was eating a sandwich.
- A Lady on Each Arm: Walks out of the van with a lady on one arm and a gentleman on the other.
- Large Ham: Just take a look at who voices him.
- Lovable Sex Maniac: He's about as close to this trope as Disney Channel will allow.
- Love Potion: Uses a belt of various potions to make matches with a flick of his fingers.
- The Matchmaker: Used to be his profession. Now that Internet Dating has made him mostly obsolete, he matchmakes as a hobby.
- No Celebrities Were Harmed: Bears more than a slight resemblance to one Jack Black.
- Physical God: A minor one, anyway. He can fly, make people fall in love, and shrugs off what would normally be lethal damage.
- Rage Quit: Legitmently after he has enough, this best describes his reaction.
- Screw This, I'm Outta Here!: After Stan's flaming Woodstick balloon crashes on him when he reclaims his Anti-Love Potion from Mabel, he decides that trying to stop the twins isn't worth the effort.
- Winged Humanoid: Has a pair of tiny wings on his back - part and parcel of his Angelic nature. He can fly with them, but it takes a while to lift off the ground since he doesn't use them much.
Ghost of Northwest Manor/Lumberjack Ghost
Voiced by: Kevin Michael RichardsonA powerful and dangerous ghost haunting the Northwest's manor.
- Anti-Villain: He has a more than legitimate grievance against the Northwest family, his problem is poor impulse control and a tendency towards collateral damage.
- Ax-Crazy: Dipper describes him as "unstable", and he fits this perfectly, happy to murder dozens of innocent people in his quest for vengeance against the Northwest family.
- An Axe to Grind: Fights using a giant battle ax, ironically separate from the hatchet lodged into his head.
- Badass Baritone: Kevin Michael Richardson's deep voice makes him even more terrifying.
- Badass Grandpa: Even before he died, while clearly being somewhere in his later years, he was still a Mighty Lumberjack, who survived years of backbreaking labour constructing the Northwest manor, in the harsh conditions that led to the deaths of dozens of other Lumberjacks. After he died, and became a level ten ghost...well.
- Bald of Evil: Upon returning as a ghost, he lost all of his hair.
- Beard of Evil: A huge, blue flaming one at that.
- Cruel and Unusual Death: Being swept away in a mudslide and getting hit in the head by an ax (while still living long enough to say a Dying Curse) certainly qualifies.
- Dying Curse: He swore to return and exact revenge on the Northwest family if they still refuse to keep their promise to allow common folk into their party."And so I said with final breath:
150 years I'll return from death
And if the gate's still closed to town,
Wealthy blood will stain the ground."
- Empowered Badass Normal: Is a level ten ghost, one so powerful that the only advice the author could give if confronted by one is "Pray for Mercy." Likewise he spent decades trying to force the Northwest family to honour their promise and let the townspeople into their party and succeeded.
- Evil Counterpart: To Dipper. Both sought revenge against the Northwest family on the behalf of another character (the deceased lumberjacks for the ghost, and Mabel for Dipper), both were tricked into working for the family, and both became enraged upon discovering the Northwests' true motives. Unlike the ghost, though, Dipper chooses not to exact revenge and forgives Pacifica. The ghost even mentions the similarity.Lumberjack: "You remind me of me a hundred and fifty years ago."
- Evil Is Not a Toy: The second he is let out of a mirror, he turns everybody at the party into wood. Dipper initially averted this, knowing letting him out of the mirror would be bad, even if he hated the Northwests as well. Unfortunately, the Lumberjack still found a way out by being allowed to see the trees.
- Evil vs. Evil: Sure, the Northwests went back on their promise to share their glory, and they treated his people like they were garbage, but even if he has a legitimate reason to hate them, he is hostile towards every living thing he sees. Even Dipper knows trusting him is a bad idea.
- Famous Last Words: As he dissipates into the air: "I feel...lumber justice."
- Flaming Hair: And beard. Weaponized when he uses his follicles to heat up the mirror he's trapped in, causing Dipper to drop and break it.
- Freudian Excuse: The ghost's motive for haunting the Northwests is to punish them for their betrayal and callousness towards him and his fellow lumberjacks who had died to build the manor.
- Ghostly Goals: All he wants is for a Northwest to honor the agreement, and invite the common people to their party. The Northwests aren't keen to oblige. Save for Pacifica.
- Jacob Marley Apparel: The hatchet to the head that killed him in life is still lodged in his ghost's head.
- Jumping Off the Slippery Slope: His anger toward the Northwest family's duplicity makes him sympathetic. Going on a rampage and killing people who just happen to be there doesn't.
- Lantern Jaw of Justice: He's got quite a cleft chin underneath that beard◊.
- Metaphorgotten:Lumberjack: "YES, YES, IT'S HAPPENING! MY HEART, ONCE HARD AS OAK, now grows soft like more of a... birch, or something."
- Mighty Lumberjack: Even before he died and gained supernatural powers.
- Miles to Go Before I Sleep: Of a sort. While his physical form did meet its end in a rather violent fashion, his soul is implied to have stayed in the manor painting that Dipper and Pacifica found him in. Furthermore, his final lines with Pacifica sound extremely relieved, both because he finally got his justice and because his soul could finally leave the manor.Lumberjack: "Pacifica, you're not like the other Northwests. I feel... lumber justice. [dissipates in a beam of light]
- Misplaced Retribution: While his anger against the Northwest is justified, he has no problems attacking others who have nothing to do with this, simply because they are in the vicinity.
- Monster of the Week: Of Northwest Mansion Noir.
- Non-Standard Character Design: His ghostly form, particularly his blank white eyes, resembles a Fleischer Bros. cartoon far more closely than his human body in the flashback does.
- Only Known by Their Nickname: Only known as "The Lumberjack". In Journal 3, Dipper shows a photo of an old, familiar-looking photo that makes him suspect he's Archibald Corduroy, one of Wendy's ancestors.
- Our Ghosts are Different: He's a category 10 ghost, the most dangerous of them all. Since he's also a ghost that came out of a portrait, he can be sealed inside of a silver mirror.
- Red Right Hand: The ghosts is missing an eye.
- Revenge: Wants revenge against the Northwests for welshing on their part of the deal, and locking the regular joes out of their party.
- Revenge Before Reason: Unfortunately, he doesn't hesitate to attack the innocent guests at the party, who have no idea what's going on.
- Rhymes on a Dime: He suddenly started speaking in rhyme for his Dying Curse and when attacking the people at the party.Dipper: The ghost is turning everyone to wood, and he just started rhyming, for some reason?
- Sins of Our Fathers: Played with. While the specific act (his death by drowning/axe to the head and the death of his lumber friends) was technically caused by the ancestors of the current Northwests, the descendants are plainly aware of their family's past atrocities and know what's needed to break the curse and make up for their sins, but refuse to do so out of a stubborn insistence to keep their party exclusive. In other words, this instance is more of a "those who will not learn from history are doomed to repeat it" situation.
- Well-Intentioned Extremist: Has noble goals, but his desire for revenge makes him attack innocent people to achieve them is a major problem.
- Woobie, Destroyer of Worlds: If he wasn't willing to kill innocent people in his quest for Revenge, it'd be hard to root against him.
- Would Hurt a Child: He planned on killing Pacifica alongside the rest of her family and anyone else who got in his way, and would have done so if Dipper and Pacifica hadn't managed to stop him.
A creature part-cyclops part-octopus that escaped from the basement
Probabilitor the Annoying
Voiced by: "Weird Al" YankovicThe mascot of "Dungeons, Dungeons & More Dungeons" summoned from another dimension by the Infinity Die.
- Affably Evil: Although he is a villain and wants to eat Dipper and Ford's brains, he genuinely enjoys playing DD&MD and tells Stan that the game is fun. He also plays by the rules, while choosing a game edition that's to his advantage.
- Art Evolution: In-Universe Example; As Dipper notes, the creators of DD&MD like to change Probabilitor's appearance every few years. Unfortunately, this led to a Dork Age in the 90s (see below).
- Basement-Dweller: If his mom making him his lunch is any indication.
- Does Not Like Spam: Or apples in this case, when his mother packed him lunch.
- Eat Your Brains: He plans to eat Grunkle Ford and Dipper's to increase his "in-chant-elligence."
- Evil Sorcerer: A classic depiction of this trope, right down to the beard, cloak and giant staff (with a multi-sided die as the ornament on top).
- Exactly What It Says on the Tin: "You'll never outrun my Ogre-nado, it is what it sounds like."
- Expy: In addition to spoofing Dungeon Masters, Probabilitor's desire to eat brains parodies Mindflayers from Dungeons & Dragons.
- Game Master: Of "Dungeons, Dungeons & More Dungeons."
- Hero Killer: By his own account, he's been summoned to life multiple times in various dimensions where DD&MD exists, and he's won every one of his encounters.
- Laughably Evil: Having a desire to eat the brains of Dipper and Ford aside, it's hard not to laugh at his whims.
- Mad Mathematician: Has the power of magical math.
- Meaningful Name: He's a master of statistics and chance, and very unpleasant company.
- Monster of the Week: Of Dungeons, Dungeons and More Dungeons.
- Psychopathic Manchild: Think of every whiny, snively, obnoxious geek in their 20s you've ever met. Now give them magical powers and a desire to eat people's brains. That's Probabilitor.
- Pungeon Master: Makes a lot of math-related puns.
- Totally Radical: In the early 90s, when the creators of the game attempted to make him and the game "cooler", he was renamed "Probabilitizzle" and given a Day-Glo hip-hop makeover, complete with shades, a hoodie, and parachute pants.
- Whatever Mancy: Has control over the power of math (gasp).
- Wizard Beard: A very prominent one at that.
Voiced by: Sam MarinA Unicorn whose hair is needed to Bill-proof the shack.
- Alien Blood: When Mabel decks her, she bleeds rainbow.
- Bait the Dog: Seems to be a friendly, pure and beautiful unicorn. Actually is... anything but.
- Broken Pedestal: Her cruel behavior's enough to turn Mabel off unicorns forever. Mabel.
- The Bully: A passive-aggressive cruel prankster version. Her standards of "pure of heart" are deliberately unattainable, she just wants to torment people who bother her for kicks. Even other unicorns think she's gone a bit far when she reduces Mabel to tears.
- Can't Argue with Elves: Or unicorns in this case, her impossibly high demands of goodness and nobility is really an act to make her and the rest of the unicorns look good and get the others to leave them alone.
- Crossdressing Voices: Is clearly voiced by a man in a ridiculous falsetto voice.
- Evil Is Petty: Unlike many of the other supernatural antagonists, who have some kind of goal or are just mindless destructive beings by nature. Her only source of antagonism is to hurt a little girl's feelings.
- Expy: Her appearance is reminiscent of Amalthea, particularly the way her mane is drawn. She also has some My Little Pony vibes. In particular, she has a Cutie Mark which bears resemblance to Friendship Is Magic Rarity.
- Heel–Face Turn: Despite refusing to help Mabel protect her family against Bill just to be a jerk, she later joins Stan's army against him.
- Incorruptible Pure Pureness: Exudes this aura to a sickening degree and demands it of any maiden who would have her hair. She's anything but, and is actually just dicking with Mabel.
- In-Series Nickname: Another unicorn calls her C-Beth which is a bit shorter.
- Jerkass: It turns out she's really nothing more but a liar to get Mabel off her back.
- Jerkass Has a Point: Despite her being a complete jerk who didn't even believe the whole "pure of heart" schtick. Celestabellebethabelle is correct for one thing: Doing good deeds to make yourself look good isn't all that noble.
- Last of His Kind: She claims she is this. She's lying.
- Light Is Not Good: She has a pure white coat, shiny mane, and she spent the whole episode emotionally tormenting a young girl for kicks. Though she's still a saint compared to Bill Cipher.
- Monster of the Week: In The Last Mabelcorn.
- Overly Long Name: Her name appears to be a composite of several.
- Screw You, Elves!: Celestabellebethabelle gets one good punch in the nose from Mabel.
- Swiss Army Tears: Inverted. She sheds a single, rainbow-colored tear, and it kills a flower in seconds.
- Troll: She admits she did everything listed above for kicks.
- Unicorn: Yep.
- Unicorns Are Sacred: Cruelly subverted. That being said, her hair does protect the Shack against Bill.
Voiced by: Chelsea PerettiStan's biggest rival tourist trap owner, and secretly a spider creature who uses the place to draw her victims.
- Achilles' Heel: Anything that takes care of normal spiders works on her if it's big enough.
- Black Widow: To an almost literal extent. She seduces men and kills them afterwards, though her motivation is food rather than money.
- Dark-Skinned Blond: Aside from the aforementioned blonde human form, her skin is noticeably tanned, even with some tan lines.
- Dead Guy on Display: Darlene's MO is displaying the corpses of her victims in plain sight as a mummy attraction.
- Giant Spider: Her true form, though she usually keeps her top half human to make it even more unsettling.
- Hidden in Plain Sight: She intentionally circulates "legends" about Spider People to lure tourists to Mystery Mountain. She also keeps the dried-up bodies of her victims and displays them to visitors under the guise of "mummies".
- Honey Trap: She especially enjoys enticing arrogant guys who think they're picking her up.
- Karma Houdini: She ends up stuck under her Paul Bunyan statue, but is still alive, seemingly unharmed, and swears to keep preying on gullible men once she gets out.
- Monster of the Week: Of Roadside Attraction, and the final one encountered in the series.
- Serial Killer: It's implied the "new mummies daily" in the Mystery Mountain crypt are all her previous victims: There are several cocoons inside the cave she lured Stan into (with even a skeleton popping out of one) and she even refers to Stan as "the catch of the day", making it pretty clear that he isn't the first of her victims.
- The Sociopath: She's not a mindless beast, she enjoys murdering people. Even happily mocking them before she kills them, and mounts them as part of her exhibition.
- Spider People: Subverted. She takes a drider-like form at one point, but her true upper body is just as spider-like as the bottom.
- Spiders Are Scary: Alex Hirsch even claims she will give you literal nightmares.
- Super Toughness: She doesn't seem to be very hurt by being crushed under a statue.
- Vocal Dissonance: That trashy, sultry voice she uses in her human disguise doesn't change at all in her true form.
- We Will Meet Again: Swears this to Stan when stuck under her Paul Bunyan statue.
- Would Hurt a Child: Has no problem trying to kill Dipper, Mabel, Candy and Grenda when they get in the way of her "catch of the day".
Voiced by: Danielle Fishel (Pyronica), Patrick McHale (Hectorgon), Andy Merrill (Teeth)Bill's fellow demons and monsters from the Nightmare Realm, who wish to wreak havoc across Earth along with him.
- Affably Evil: Considering who they're friends with, this isn't surprising.
- Anthropomorphic Food: Xanthar is a giant, purple loaf of bread with four legs.
- Anthropomorphic Personification: Pyronica is apparently this of Bill's blue flames.
- Army of Thieves and Whores:Bill: Now meet the gang of interdimensional criminals and nightmares I call my friends!
- Ax-Crazy: They're just as, if not more, mentally unstable than Bill is.
- Badass Boast: Pacifier gives a good one to Soos before the fight.Paci-Fire: I have butchered millions on countless moons.
- Badass Mustache: Hectorgon has a big one.
- Belly Mouth: One of them (Paci-Fire) has a face on its torso, with a pacifier chained to its leg.
- Butterface: If you look past the one eye, horns, missing teeth and Overly Long Tongue, Pyronica is really hot!
- Cephalothorax: Kryptos, who is little more than a square-shaped mouth with limbs.
- Eldritch Abomination: Some of them look even stranger and more alien than Bill himself.
- Even Evil Has Standards: Subverted. When Bill vaporizes Time Baby, it looks like they are horrified, only to reveal they were actually impressed.
- Fashionable Asymmetry: 8-Ball wears iron stocks with broken off chains on his right hand and right foot, but not on either of his left.
- Make My Monster Grow: Bill can use his powers to make them giants.
- Glowing Eyes of Doom: When they increase their size, their eyes glow red.
- Horny Devils: Pyronica gives off these vibes, being a voluptuous demoness who's associated with fire. She's a more G-rated variant, though.
- Monstrous Cannibalism: They play a Spin the Bottle game with a petrified Lazy Susan (Spin the Person), where one of them eats the one pointed at. The one eaten was back in the next episode though, so it's apparently not lethal.
- Nice Hat: Xanthar wears a party hat all the time, while both Hectorgon and an unnamed Lava Lamp creature both sport spiffy bowler hats.
- Nonhumans Lack Attributes: Pyronica has a humanoid body with no discernible clothing and a visible belly button, but otherwise doesn't have any frontal attributes that would warrant a bump in the age rating. She does, however, have a butt.
- Oculothorax: The Eye-Bats, whose anatomy consists of a large eye, a pair of wings, and nothing else.
- Our Demons Are Different: At least some of them are demons (nightmare beings) like Bill, though others might be monsters from other dimensions.
- Our Monsters Are Weird: They include: a goblin-like monster with billiard balls for eyes (8-Ball); a keyhole with arms and legs (Keyhole); a floating Masonic compass with limbs (Kryptos); a hexagon with arms, a mouth, and a mustache (Hectorgon); a fiery pink demoness with horns and one eye (Pyronica); a pair of false teeth with arms and legs (Teeth); a horned creature with a face on its torso which is sucking a pacifier chained to its leg (Paci-Fire); a huge, lumbering purple giant with a head resembling a loaf of bread (Xanthar); and a non-Euclidean string of colored tiles (Amorphous Shape). As shown in "Escape from Reality", even Bill finds some of them so profoundly alien and nameless that he stumbles when trying to address them.Bill: Ladies! Gentlemen! That one creature with, like... 87 different faces!
Grotesque Floating Cluster of Mutilated Heads: 88 different faces!
Bill: Woah-ho, sorry! (Tugging on his bowtie) Touchy subject.
- Psychopathic Manchild: They act like a bunch of rebellious teenagers throwing a party when their parents aren't around, but are all positively ancient (probably about a trillion or so years old, assuming they're contemporaries of Bill Cipher).
- Quirky Miniboss Squad: 8 Ball, Teeth, Keyhole, Nektorgon and Pyronica.
- Remember the New Guy: After Bill introduces all of his friends, another demon who looks like a lava lamp with a mouth and a bowler hat appears out of nowhere.
- The Scottish Trope: Xanthar is apparently one of these, but Bill doesn't care.Bill: The Being Whose Name Must Never Be Said! Ha ha, what the heck. It's Xanthar.
- Sealed Evil in a Can: After Bill is killed, they're still alive, but forced back to the Nightmare Dimension.
- To Serve Man: Bill suggests that 8-Ball and Teeth should eat Dipper as a snack. 8-Ball is uncertain, but Teeth immediately gets on it. Teeth also eats one of the gnomes, though he ends up being spat back out later.
- The Smurfette Principle: Pyromonica is the only one among Bill's gang who is female; or, well, at least looks female. Don't forget Bill's dimension has 14 billion genders.
- Villainous Friendship: Given their intense cruelty and immense power levels, they all get along surprisingly well with each other, even despite the occasional cannibalistic party game.
The Horrifying, Sweaty, One-Armed Monstrosity
Voiced by: Louis C.K.A massive human head with an arm growing out its top and no body, who wanders Gravity Falls trying to eat people.
- Affably Evil: He's strangely direct about wanting to eat people, and seems to take no for an answer during the credits. Dipper's "rudeness" in trying to escape and ignoring him bothered him more than anything else.
- Cephalothorax: With no body parts besides a head and an arm growing out its top, he qualifies.
- Even Bad Men Love Their Mamas: He's a human-eating monster, but when disappointed he plans to call his mother.
- Ineffectual Sympathetic Villain: His pathetic attempts to get someone to go in his mouth make it hard to hate him.
- Ink-Suit Actor: With his bald head, red hair, and large nose, he looks very much like a monstrous Louis C.K.
- Our Monsters Are Weird: A giant human face with an arm growing out of its top. WTF?
- To Serve Man: He wants to eat people, though no one will get into his mouth when he asks. He only succeeds in eating an unlucky henchman from Gideon's prison gang.
Dippy Fresh voiced by: Matt Chapman
Judge Kitty Kitty Meow Meow Face Schwartzstein voiced by: Jon Stewart
Ernesto voiced by: Eric BauzaBill Cipher's most diabolical trap, where he placed Mabel after starting Weirdmageddon. The bubble creates whatever its tenants want the most, and since this is Mabel, it's the most zany place of all. Natives include Dippy-Fresh, a 'cooler' version of Dipper who likes skateboarding and supporting his sister, and Judge Kitty Kitty Meow Meow Face Schwartzstein, who presides over the trial of Fantasy vs Reality, and, well, every other crazy thing Mabel's imagined.
- Ambiguously Jewish: Played for laughs, as the Judge's Overly Long Name ends in Schwartzstein, in reference to his Jewish voice actor.
- Attention Deficit... Ooh, Shiny!: The Judge gets distracted by a string of yarn before the Fantasy vs. Reality court case.
- Berserk Button: They hate reality so much, that they'll attack anyone, even Mabel.
- Cloud Cuckoolander: The Judge, due to being part of Mabelworld.
- Cool Shades: Part of Dippy-Fresh's attire.
- Corrupt Hick: The Judge has one hell of a Southern accent.
- Crapsaccharine World: Due to Mabel's enforcement of Happiness Is Mandatory (also because, you know, it's a prison). Anyone who rejects the fantasy (even Mabel herself) has to see the world's horrific true form.
- Expy: Dippy-Fresh looks a lot like the old mascot of the Burger King Kid's Club, Kid Vid.◊
- Funny Animal: Meow Meow has the head of a cat, but the body of a person.
- Kangaroo Court: Kitty Kitty runs one in Mabelworld.
- Lotus-Eater Machine: Ultimately Mabeland keeps its victims prisoner by giving them what they want, before they even want it. It's so perfect that it would be too hard to reject.
- Masked Luchador: Ernesto, Soos' "father" (which is actually what Soos imagined he looked like).
- Me's a Crowd: Mabel imagines a bunch of clones of her as the jury in Dipper's trial.
- Other Me Annoys Me: Dipper really hates Dippy-Fresh.
- Petting Zoo People: Schwartzstein falls in between this and Funny Animal on the Sliding Scale of Anthropomorphism.
- Replacement Goldfish: Dippy-Fresh was created as a "backup" Dipper.
- Sugar Bowl: It's a world designed to appease and distract Mabel, and any weak-minded fool who walks into it.Wendy: Dude, this place hurts my eyes...
- Too Spicy for Yog Sothoth: When she comes to her senses, Mabel realizes that Mabeland is too much, even for her.
- Totally Radical: Similar to Xyler and Kraz. Dippy-Fresh looks like he crawled out of a Mountain Dew commercial.
- The Worm That Walks: When Dipper rejects Mabeland!Wendy, and Mabel breaks free of Mabeland's influence, both her and the Judge dissolve into bugs.