Voiced by: Peter Sallis; Ben Whitehead (Grand Adventures and TV spots)
- All Love Is Unrequited: In Grand Adventures, he shows no romantic feelings for Felicity Flitt even when she starts developing interest in him in Episode 3, and he's rather shocked when he accidentally proposed to her and spends much of Episode 4 trying to undo this. He's shown to be quite relieved when Flitt gets back with Duncan McBiscuit in the end.
- Anti-Hero: As the Were-Rabbit.
- Bald of Awesome: He has no hair and his inventions can be pretty impressive.
- Hair Today, Gone Tomorrow: According to Curse Of the Were-Rabbit, he had a full head of long hair when Gromit was a puppy. He lost it by the time Gromit finished college.
- Bungling Inventor: Most of his inventions backfire on him.
- Butt Monkey: Gets hurt by his own inventions.
- Catch Phrase:
- "CheeeeEEEEeeeeeeeese!" (with Wallace's trademark excited hands).
- Also, once things inevitably fall apart, Wallace's "GROMIT! HELP! DO SOMETHING!," or the less emphatic "Gromit! Do something, lad!" There's no ceiling on how many times Wallace will say this in a single episode.
- Did Not Get the Girl: Despite Ship Tease with three female characters in three different stories, Wallace has never gotten together with anyone.
- Disney Death: As the Were-Rabbit.
- Genius Ditz: He's a terrific inventor, but a bit slow to pick up on some things that are more obvious to others.
- Identical Grandson: To Witlace in Grand Adventures.
- Mad Scientist: A heroic example. Wallace's inventions range from malfunctioning Rube Goldberg-esque devices to clever and groundbreaking gadgets — which also have a tendency to malfunction. Notably, he seems more competent in the feature film than in most of the shorts.
- Meaningful Name: Wallace can be diminutised as "Wally", a slang term for a naïve or foolish person.
- New Job as the Plot Demands: A window-cleaner in A Close Shave, and a baker in A Matter of Loaf and Death. In Curse Of the Were-Rabbit, a humane pest-control business. In the Grand Adventures games, a beekeeper, runner of an indoor holiday resort, ice-cream vendor and detective.
- Nice Guy: Perhaps the friendliest and most mild-mannered version of the Mad Scientist trope out there!
- Oh, Crap!: Has this reaction a lot, especially when his inventions go haywire. Most notably when he realizes he's the Were-Rabbit.
- Our Werebeasts Are Different: When he turns into the Were-Rabbit.
- Pungeon Master: Makes puns frequently.
- Science Hero: More often then not turns to science for any given problem.
- Too Dumb to Live: More and more after each short, though he did find out Piella was a serial killer when Gromit shows him the bomb in A Matter of Loaf of Death.
- Trademark Favorite Food: Cheese, particularly Wensleydale, is Wallace's favorite, but he's also pretty enthusiastic about toast and crackers.
- Undying Loyalty: After Gromit is framed for murder and awaiting life imprisonment, Wallace wastes little time concocting a breakout. He also tries to save Gromit when he gets captured by Monty Muzzle.
- Ace Pilot: As seen in A Close Shave and The Curse of The Were-Rabbit in a Shout-Out to Snoopy in Peanuts.
- Action Pet: He could technically be considered Wallace's pet and does a lot more traditionally heroic things than his master.
- Badass Adorable: Gromit isn't just a loyal dog, he's so fiercely loyal that it'll take a lot to take him down. He's also quite cute.
- Beleaguered Assistant: He tends to wind up on the wrong end of some of the things Wallace instigates.
- Big Ol' Unibrow: Gromit never speaks, so this is the only way you know what he's feeling. It's really incredible, the emotion you can wring out of an artfully-squashed bit of plasticine...
- Butt Monkey: Misfortunes happen to Gromit a lot.
- Civilized Animal: He's bright and perceptive, but is treated as an ordinary dog. He also seems to have the psychology of a dog, if his devotion to Wallace is any indicator.
- Cloud Cuckoolanders Minder: He spends a lot of time rescuing Wallace from his own predicaments.
- Deadpan Snarker: While Gromit is usually a Silent Snarker, the duo's mutual diary - published as the Cheese Lover's Yearbook - has little typewritten notes expressing Gromit's reaction to whatever is happening. After the entries for "A Close Shave":Wallace: Relieved to have come out of this in one piece.
Gromit: Instead of several hundred, like Preston. - G
- The Engineer: Often has to build and use the inventions that Wallace dreams up.
- Expressive Ears: His second most-expressive feature.
- Hypercompetent Sidekick: He is Wallace's assistant and is responsible for at least some of the daily work of running the household, helping with Wallace's inventions, and pulling Wallace's fat out of the fire. In Project Zoo, he's even the main playable character.
- Identical Grandson: To Gimlet in Grand Adventures.
- Intellectual Animal: He's very smart!
- In Touch with His Feminine Side: Gromit is a very sensitive individual who isn't afraid to cry when things really get bad, and has a love for knitting.
- Meaningful Name: A grommet is a rubber ring used to seal the edge of a hole, to stop it chafing the insulation of wires passed through the hole.
- No Mouth: Most likely the reason why he's The Speechless.
- Protagonist: Despite being the assistant and Wallace getting top billing, Gromit is always the more focused one.
- The player character in Project Zoo.
- Silent Partner: To Wallace.
- Silent Snarker: The Trope Codifier. Being wordless doesn't mean he can't convey sarcasm.
- The Speechless: He never speaks, save for the occasional bark. But that's not to say he's inexpressive.
- Undying Loyalty: Even upon the discovery of Wallace being the Were-Rabbit, Gromit is fiercely loyal to his master.Victor Quartermaine: Your loyalty is moving; sadly, you won't be.
- Intellectual Animal: Besides modifying the controls of the Techno Trousers, he created his own wide variety of complex inventions as seen in "Project Zoo".
- Would Hurt a Child: In "Project Zoo" he threatens the lives of baby zoo animals in order to force their parents into working for him.
Voiced by: Anne Reid
- Guilt-Ridden Accomplice: She goes along with Preston's plot, but doesn't like the lengths to which he carries it.
- Ur-Example: The first (and certainly not the last) Love Interest for Wallace.
Preston the Bulldog
- A.I. is a Crapshoot: Preston, the villain, was once a good robot dog that according to Wendolene suddenly became evil.
- Big Bad: Of A Close Shave.
- Expy: Of the first T-800.
- Heel–Face Turn: At the end, where he's back to normal after being rebuilt.
- Adaptation Personality Change: A perpetually eating Genius Ditz in the Wallace & Gromit series. An anthropomorphised Loveable Rogue in his own series.
- Anthropomorphic Shift: While having some moments of brilliance, Shaun was more a standard destructive animal in A Close Shave. When branched out into his own show, Shaun evolved into a level of human-like intelligence almost on par with Gromit, was granted a more expressive personality and more became far more liable to walk on his hind legs.
- Intellectual Animal: A mild case in Wallace & Gromit, a full on example in his own series.
- Loveable Rogue: In his own series.
- Punny Name: Shaun rhymes with "shorn" (as in "sheared") in non-rhotic varieties of English.
- The Speechless: Although he does bleat quite frequently.
Lady Campanula Tottington
Voiced by: Helena Bonham-Carter
- Friend to All Living Things: She is rarely unfriendly to anyone or anything
- Heroes Want Redheads: She is a redhead and Wallace falls for her.
- Punny Name: "Tottie" is UK slang for an attractive young woman.
Lord Victor Quartermaine
Voiced by: Ralph Fiennes
- Big Bad: Of The Curse of the Were-Rabbit.
- Gold Digger: Victor's already a rich nobleman, but he was wooing Lady Tottington solely for her money.
- It's Personal: Discovering the Were Rabbit is Wallace, who has been gaining Lady Tottington's affections, only makes him even more vehement about blowing its brains out.
Voiced by: Peter Sallis
- Animal Talk: One of the only ones in the franchise.
- Continuity Nod: An odd case in that pretty much every single line of dialogue spoken by him is a quote taken either from earlier in The Curse of the Were-Rabbit, or from one of the three shorts preceding it.
- Helium Speech: His voice is really Wallace's in higher pitch.
Voiced by: Sally Lindsay
- Disproportionate Retribution: She lost her job as the Bake-o-Lite bakery spokeswoman when she became too heavy to use the balloon featured in all their commercials. Because of this, she decides to murder a baker's dozen worth of bakers to punish all bakers for producing the rich foods that she got fat eating.
- Family-Unfriendly Death: Being eaten alive by crocodiles at the zoo, after she weighs down the balloon on which she's attempting to escape. Thankfully Gory Discretion Shot is in play.
- Fat Comic Relief: Though one of the darkest villains in the series, they still manage to make a fair amount of humor concerning her weight problem.
- Hurricane of Puns: She makes many, incredibly unsubtle jokes on how she's going to murder Wallace.
- I Was Quite a Looker: Before she gained a lot of weight.
- Kick the Dog: She literally kicks her dog Fluffles, although in such a way that it could be interpreted as a hard nudge.
- Knight of Cerebus: Few of her qualities are played for laughs, and unlike most of the villains, has succeeded at murdering innocent people.
- Serial Killer: She was responsible for the deaths of twelve bakers, all for a petty reason, no less.
- Too Dumb to Live: In the end.
- White-Dwarf Starlet: Piella Bakewell. Wallace recognizes her as the spokeswoman for Bake-O-Lite Bread, but she was fired as the "Bake-O-Lite Girl" when she became too heavy to fly the balloon they used in advertising.
Voiced by: Melissa Collier
- Break the Cutie: Fluffles comes pre-broken, evident from the trembling. Though she eventually overcomes it.
- Civilized Animal: Fluffles is capable like Gromit, though she's generally shown on all fours for much of the film. Notably, her moments of bipedalism happen either out of the sight of her abusive master, or at the film's end when she finally stands up to her and remains bipedal for the rest of the film.
Grand Adventures characters
- Identical Granddaughter: To the Duchess Flitt.
- Small Name, Big Ego: She thinks highly of her garden and her dogs.
- Cloudcuckoolander: He frequently believes he's in a war.
- The Cloudcuckoolander Was Right: The town really was attacked... just not in the way anyone expected.
- Multiple-Choice Past: He also seems to have difficulty remembering what branch of the military he was in from chapter to chapter. In the first chapter he claims to have been in the artillery, but in the third he claims to have been in the RAF.
- Jerkass: He locks up anyone (and anything) that he considers to violate the law. The main plot of The Bogey Man involves him trying to close the local country club mostly because he wasn't invited to it.
- Serious Business: The Constable tends to take his police work seriously.
- Butt Monkey: No matter what kind of crazy plot Wallace and Gromit are caught up in, it always ends up inconveniencing him somehow. He lampshades this in the final episode.
- Captain Ersatz: He seems to be W&G's version of Apu from The Simpsons.
- Identical Grandson: To Rory McBiscuit.
- Jerk with a Heart of Gold: Mostly to Ms. Flitt, but he does save Wallace and Gromit from falling at the end of The Last Resort.
- Bitch in Sheep's Clothing: He opens up a fundraiser on the claims of rebuilding a dog shelter. It's actually a scam to swindle money out of the townsfolk and using actual strays as labor for the rides.
- Kick the Dog: Monty kidnaps strays dogs to move his ride the Muzzler. Some of his dialogue implies that a couple of dogs died because of this.
- Laser-Guided Karma: He lands in jail, and the only thing keeping him company are the two mean dogs from the previous episode.