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Character page for the Inspector Gadget animated series and live-action films.

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Gadget and Friends

    Inspector Gadget
Voiced by: Gary Owens (original pilot), Jesse White (first revision of pilot), Don Adams (second revision of pilot and remainder of original series), Maurice LaMarche (Gadget and the Gadgetinis, Inspector Gadget's Last Case, Inspector Gadget's Biggest Caper Ever), Luc Durand (French voice)
Played by: Matthew Broderick (1999 movie), French Stewart (Inspector Gagdet 2)

An air-headed cyborg police inspector who's rather clueless.

  • Accidental Hero: Believe it or not, there are actually a number of times when Gadget is legitimately helpful and actually contributes towards solving the case. It's just that he tends to do it purely by accident.
    Gadget [whenever he's congratulated for solving the case]: I did?
  • Adaptational Badass: He's a lot more competent in the first live action movie, to the point where he actually arrests Dr. Claw. Also in the aforementioned first live-action movie, even most of his gadgets get this treatment, in that most of them actually benefit him in situations, including but not limited to that same movie's version of the Helicopter Hat actually allowing him to properly fly with no problems, his super-strength and super-toughness (which is a gadget in of itself due to how his cybernetics function) actually playing a role in fights, his magnifying glass actually being used to find a literal clue, among other gadgets in the 1999 version.
  • Adults Are Useless: However, when Gadget knows Penny is in danger, he becomes scarily competent.
  • Artificial Limbs: His arms and legs appear to be robotic.
  • Badass Longcoat: He wears a huge overcoat and on rare occasions can turn out to be very competent when he needs to be.
  • Badass Mustache: He had one in the test opening.
  • Calling Your Attacks: Zig-zagged. Gadget usually uses his "Go-Go Gadget" Catch Phrase to activate his gadgets, and a second-season episode says that they're activated by voice commands. However, Gadget's gadgets will sometimes activate by themselves, either by accident or because Gadget simply wants them to. Penny and Brain have also activated Gadget's coat by pulling the button that inflates it.
  • Catch Phrase:
    • "I'm always on duty."
    • "Go-go Gadget [insert name of gadget he's trying​ to use]!"
    • "Wowsers!"
  • Chekhov's Skill:
    • His sheer clumsiness, as proven when Quimby shows up and there's an impostor in the same room. Quimby knows which Gadget is which just because one of them happened to attack him with a stray mallet that just happened to go off by itself at exactly the right moment...
    • Also his tendency to mistake Brain for a MAD agent. In "MAD Trap" Brain is savvy enough to intentionally pretend to be criminal to distract Gadget away from a booby trap.
  • Clueless Detective: He has a reputation for being a great detective, but it's really thanks to Penny and Brain's help that his incompetence hasn't gotten him killed or ruined his chances at foiling Dr. Claw's schemes.
  • Crouching Moron, Hidden Badass: In rare instances he's shown to be scarily competent. Namely when lives are in genuine danger, ESPECIALLY Penny's. Also when he's pursuing Dr Claw (And actually knows it's Dr Claw)
  • Cyborg: He has robotic parts, but several episodes imply that he used to be human. For example, he still has basic human needs such as hunger and sleeping.
  • Decoy Protagonist: Somewhat arguably for his niece Penny.
  • Determinator: He often shows extreme determination to complete his missions. When he was chasing Dr Claw (And actually knew it was Dr Claw), Claw only got away because the Gadgetmobile can't fly.
  • The Ditz: He's often unable to successfully solve cases himself because he's a moron. That said, the mayhem he causes is often directly helpful to Penny and Brain.
  • Drives Like Crazy: It's amazing he still has a license, really.
  • Expressive Hair: Gadget's hair droops when he's sad, disappointed, or surprised.
  • Expy: Of Inspector Clouseau and Maxwell Smart, with elements of the Six Million Dollar Man and Robocop added to the mix. In the 1999 movie version, a few more elements of Robocop are added in for good measure.
  • Fake Ultimate Hero: He has a reputation of being the world's greatest crimefighter, and while he has managed to save the day himself on rare occasions, it's usually Penny and Brain that do all the work.
  • Fearless Infant: Gadget was shown to be one in a flashback of the final episode, where he is seen as a baby witnessing crime boss Spuds Malone gun down people with his potato gun the Red Rose and being completely unfazed by the chaos.
  • Flanderization: In the pilot, Gadget was bumbling, but not nearly as oblivious, and managed to fend off most of MAD's schemes via competence. Early episodes occasionally flip flopped between this depiction and his iconic Accidental Hero persona before finally settling for the latter. This was taken Up to Eleven where most spin offs such as Gadget and the Gadgetinis are concerned.
  • The Fool: Despite his idiocy, Gadget continually helps Penny and Brain out in one way or another, which leads to some Alternate Character Interpretations among fans that he's merely Obfuscating Stupidity.
  • Good Parents: Bumbling though he may be as a detective, he's a very good father to Penny, who's a well-adjusted and brilliant kid.
  • Hat of Flight: His hat contains helicopter blades, which allows him to fly.
  • Hidden Depths: Though incompetent as an actual sleuth, Gadget often gives rather insightful lessons about day-to-day lifestyle to his niece at the end of each episode.
  • Horrible Judge of Character: Gadget always believes the lies MAD agents tell him. He'll even trust MAD agents that aren't even bothering with deceiving him and are just trying to kill him ("Ah! The welcoming commitee!"). This goes all the way to the opposite end of the spectrum. He'll spot Brain in disguise, and instead of recognizing Brain, he'll think Brain is the MAD agent!
  • Hyperspace Arsenal: He has a lot of stuff inside his hat.
  • Idiot Hero: The main protagonist and a complete dunce.
  • Inspector Oblivious: Aside from actually being an inspector, he also tends to be very gullible.
  • Invincible Incompetent: While not very bright, his stupidity often causes him to unknowingly thwart M.A.D. agents' attempts to kill him, when he doesn't otherwise ruin MAD's plans outright.
  • Kindhearted Simpleton: Gadget means well in his antics and is trying to save the day, he's just completely inept about it.
  • Know-Nothing Know-It-All: Gadget would always prevent Penny and Brain from ever coming with him on missions because "it's much too dangerous". Really, the missions are much too dangerous for him since he's a Horrible Judge of Character, an Inspector Oblivious, and basically Too Dumb to Live. One of the biggest reasons why he succeeds and survives is because of Penny and Brain's interventions, which he is never aware of.
  • Last-Name Basis: In the animated incarnations. In the movie Gadget is just a nickname given to him by the press and his real name is John Brown.
  • Lawful Stupid: He works for the Metro City police and is a complete idiot.
  • Let's Get Dangerous!: Very, very rarely, Gadget showed competence and was able to avert disaster all on his own. This tends to happen when Penny is in danger.
  • Manchild: He occasionally acts this way, such as in "Gone Went the Wind", when he becomes snowblind, mistakes a polar bear for Santa Claus, and sits on the polar bear's lap asking for a choo-choo train, a candy cane, and a doll of himself.
  • Named by the Adaptation: The 1999 movie gave Gadget the real name of John Brown.
  • Nice Hat: He wears a fedora.
  • Obfuscating Stupidity: It's been argued that he only acts like a bumbling idiot, and lets Penny be the hero. One of the biggest arguments for this is that he becomes significantly more competent, and significantly more dangerous, when Penny is in genuine danger.
  • Older Than They Look: According to "Gadget and the Red Rose", Gadget is in his fifties.
  • OOC Is Serious Business: See also Papa Wolf and Let's Get Dangerous!. Threaten Inspector Gadget's niece Penny, and you'll instantly find out just how competent the normally bumbling Gadget can be. In "The Infiltration", he also gets a line spoken with a dead-serious tone you wouldn't expect—namely, that if he doesn't catch the phony soon, "the security of the free world could be in jeopardy."
  • Papa Wolf:
    • When he knows Penny is in danger, Gadget becomes virtually unrecognizable (and unstoppable) as he becomes the superhero he is supposed to be. For what it's worth, one of his few talents seems to be acting as a guardian; when not oblivious to some villain on her tail, he raises Penny rather well and gives rather intelligent life lessons.
    • This extends to other people Gadget cares about. He's gone to similar lengths to save Brain (when he actually knows that he's dealing with Brain, as opposed to thinking the disguised Brain is a MAD agent) and Professor Von Slickenstein, the scientist who gave him his gadgets.
  • Parental Obliviousness: Gadget has no idea that it's his niece solving his cases and saving the world.
  • Police Are Useless: Aside from the rare occasions where he proves himself to be competent when he needs to be, Inspector Gadget is a bumbling imbecile who is easily deceived by Dr. Claw and M.A.D.
  • Simple-Minded Wisdom: For all his idiocy as a detective, the guy gives his niece some meaningful advice in domestic and outdoor life in the educational bumpers.
  • Smart Ball: Gadget, who could show competence whenever it was necessary to advance the plot. Several of MAD's attempts to derail the train in Basic Training were thwarted by Gadget himself, while in The Ruby Gadget defeated the tigers Dr. Claw sent after him on his own.
    • He's also holding this to a degree in Last Case where he's somewhat less bumbling and gullible and more actively engaging in police work. Emphasis on somewhat.
  • Spanner in the Works: Despite Gadget's idiocy, the chaos he causes frequently helps Penny and Brain save the day. He's also destroyed more than one MAD base by accident.
  • Super Strength: While usually not demonstrated in very ostentatious fashion, Gadget's baseline strength is clearly superhuman. There are occasional exceptions where it's more obvious; for example, in "Gadget's Gadgets" he broke free when literally riveted in place with steel bands on an operating table.
  • Super Toughness: Gadget frequently suffers more extreme abuse than RoboCop has to put up with on a bad day. He has survived falls off skyscrapers, crashing airplanes, electrocutions, any number of bombs and IEDs, and even being sawn in two. As yet, nothing has permanently crippled him.
  • Swiss Army Appendage: He has several of these, though most of his gadgets come from his hat.
  • Too Dumb to Live: Penny and Brain have to keep Gadget's stupidity from getting him killed in even the most mundane of situations.
  • Tricked-Out Shoes: His shoes can become magnets and roller skates. Later animated installments would also show them to have suction cups in the soles.
  • Useless Protagonist: Half the time, the other half his bumbling inadvertently comes handy (about five or six times throughout the show he actually saves the day through competence).
  • Wacky Parent, Serious Child: A variant in that he is the Wacky Uncle to Penny's serious niece.
  • We Can Rebuild Him: His origin in the movie is that he was converted into a cyborg after being injured in an accident.
  • Where Does He Get All Those Wonderful Toys?: It's never explained where he got all his gadgets.

Voiced by: Mona Marshall (pilot), Cree Summer (first season), Holly Berger (second season), Erica Horn (Inspector Gadget Saves Christmas), Tegan Moss (Gadget and the Gadgetinis, Inspector Gadget's Last Case, Inspector Gadget's Biggest Caper Ever), Patricia Danot and Barbara Tissier (French voice)
Played by: Michelle Trachtenberg (1999 movie), Caitlin Wachs (Inspector Gadget 2)

Inspector Gadget's niece. As Gadget is clueless and rather inefficient, she always steps in to help him behind his back with her portable computer and Brain, without ever letting him know.

  • Age-Inappropriate Dress: Her swimsuits tend to be very revealing for a ten-year-old.
  • Badass Adorable: A young girl who succeeds in anonymously helping her uncle thwart Dr. Claw's plans.
  • Badass Bookworm: She has a book that's also a computer (the best of both worlds). She's also suggested to be a very good student.
  • Borrowed Catch Phrase: She sometimes uses her uncle's Catch Phrase of "wowsers!" She has also occasionally used Gadget's "Go-Go Gadget" phrase when using her computer book to activate one of the Gadgetmobile's gadgets.
  • Bound and Gagged: Whenever she gets caught by a M.A.D. agent, she often gets tied up.
  • Cloudcuckoolander's Minder: When Gadget's trademark stupidity kicks in, she's usually the one who (tries to) steer him in the right direction, or has Brain trick him into it in extreme cases.
  • Damsel in Distress: She is often captured and tied up by Claw's henchmen.
  • Damsel out of Distress: She often escapes from Claws' henchmen, or arranges for Brain to rescue her.
  • Dub Name Change: In the French version her name is Sophie.
  • Flanderization: In the pilot and a couple of early episodes, she was largely a Tagalong Kid who secretly helped Gadget with the odd obstacle he couldn't handle himself. Afterwards she's Gadget's Hyper-Competent Sidekick who often does the whole mission while her uncle screws up.
  • Girlish Pigtails: She has pigtails.
  • Hair of Gold, Heart of Gold: Her hair is blonde and she is a very kindhearted person.
  • Hyper-Competent Sidekick: Though Gadget doesn't know it, she helps her uncle solve all his cases.
  • Kid Detective: She's a young girl who solves cases for her uncle.
  • Mission Control: She's not an Action Girl so Brain always does the field work. She hijacks/spies on the M.A.D. agents with her portable computer and communicates informations to Brain via Comm Links.
  • Nephewism: Her uncle is her legal guardian/primary caregiver and it's never really discussed/confirmed what happened to either of Penny's parents. In the second season, it's confirmed that both of Penny's parents are dead—and while we only have Dr. Claw's word for it, Gadget is apparently Penny's only living relative.
  • Nerves of Steel: It's amazing how she hardly gets annoyed with her uncle's antics.
  • Nice Girl: Penny rarely shows anger, hardly ever even gets annoyed (even with her uncle's antics), and the number of people she shows intense dislike for throughout the entire franchise can be easily counted on one hand. As a result, she has a knack for making friends and allies at the drop of a hat.
  • Non-Standard Character Design: In comparison to the other very cartoony designs in the show, Penny's is noticably more animesque and realistically proportioned. Gadget and the Gadgetinis gives her a somewhat wackier design, though still slightly more subtle than the rest of the cast.
  • Not So Above It All: She may be the most competent and mature person in her household, but mention her favorite singer and she still goes into shrieking fangirl mode.
  • Only One Name: Penny was never given a last name, though a lot of people just assume it's Gadget.
  • Plucky Girl: She remains calm even when in dangerous situations.
  • Protectorate: Most of the rare times her uncle achieves something competent is when Penny's life is on the line. At least when he knows it.
  • Snooping Little Kid: Frequently spies on M.A.D. agents to see what they are up to.
  • Tomboy: Not all that feminine.
  • Unknown Rival: The key comedy of the show is that it's Penny who undoes Claw's schemes but Claw is somehow convinced Gadget is his main enemy. Averted in the second film, where he considers her more of a Worthy Opponent than Gadget.
  • Wacky Parent, Serious Child: Replace "Parent" with Uncle and "Child" with "Niece" and you have this.
  • Why Did It Have to Be Snakes?: When it comes to ghosts. She gets over it with the help of Gadget.
  • Your Size May Vary: While Penny had more or less consistent design even with the original show's slew of outsourced animation styles, her pigtails did not. Some episodes had them small and petite, others could have them near the size of her face (best seen in the outro), and everything in between.

Voiced by: Frank Welker (original series), Lee Tockar (Inspector Gadget's Last Case, Inspector Gadget's Biggest Caper Ever), Maurice LaMarche (Gadget and the Gadgetinis), Christian Pelissier (French voice), Don Adams (1999 movie), Jeff Bennett (Inspector Gadget 2)

Penny's super-intelligent dog who always assists her when she works in the shadow to help Gadget. As Penny is not an Action Girl and always needs to use her portable computer, it's him who always does the field work and ensures Gadget doesn't get killed.

  • Action Pet: Although more wacky than outright action, he still goes through things that one would have to be tough to get though.
  • Beleaguered Assistant: Occasionally averted when Gadget actually saves Brain. This usually happens when Gadget thinks he's a MAD agent and is trying to capture him, and ends up grabbing Brain right before he'd fall to his death.
  • Conjoined Eyes: He has these.
  • Detective Animal: He also helps Gadget solve cases.
  • Face Palm: One of his frequent reactions to Gadget's antics.
  • Heroic Dog: He always stays close to Gadget to keep him safe during his missions.
  • Hyper-Competent Sidekick: To Penny.
  • Intellectual Animal: He displays a great deal more situational awareness and common sense than the titular character, whom he must constantly protect from harm.
  • Meaningful Name: Brain is a complete subversion of the Dogs Are Dumb trope.
  • My Instincts Are Showing: Though usually a neurotic Straight Man with more human intelligence than most of the police force combined, Brain sometimes has displays of puppy-like friskiness. For example, at one point when Gadget tries to throw away some explosives, he mistakes it for a stick and excitedly plays fetch with it.
  • Non-Human Sidekick: He is a dog.
  • Obfuscating Stupidity: Brain's French name of "finaud" and the lyrics of the French version of his theme song both allude to his hiding his competence behind his harmless outward appearance.
  • Paper-Thin Disguise: He often tries to avoid suspicion by wearing a disguise. Ironically, it tends to backfire by having Gadget mistake him for a M.A.D. agent.
  • Put on a Bus: In Gadget and the Gadgetinis, though he did guest star in one episode.
  • Silent Snarker: Often makes expressions that show his disdain for the unfortunate events that happen while trying to help Gadget.
  • Speech-Impaired Animal: Depending on the Writer, but he is often The Unintelligible.
  • Why Did It Have to Be Snakes?: Unlike Penny, Brain stays afraid of ghosts through the whole series.

    Chief Quimby 
Voiced by: John Stephenson (pilot), Dan Hennessey (first season), Maurice LaMarche (second season), Jim Byrnes (Inspector Gadget's Biggest Caper Ever), Gérard Delmas and Roger Lumont (French voice)
Played by: Dabney Coleman (1999 movie), Mark Mitchell (Inspector Gadget 2)

  • Big Good: He's Gadget's boss and the chief of the organization employing him.
  • Butt-Monkey: Every time Gadget receives a self-destructing message, Quimby will inevitably get stuck with the note exploding in his face.
  • Catch Phrase:
    • "Great job, Gadget! You've done it again!" (used when he shows up at the end of the episode to arrest the MAD agents);
    • "Why do I put up with him?" Used in several episodes after the assignment message blows up in his face.
  • Da Chief: Not exactly as strict, but he has suffered a lot due to Gadget's incompetence.
  • Chew Toy: Without fail his 'self-destructing message' will be near him when it goes off.
  • Composite Character: Of the Chief of CONTROL and Agent 13 from Get Smart, which Inspector Gadget could be considered a Spiritual Successor to. Like the former, Quimby gives orders and mission debriefings to the bumbling protagonist. Like the latter, he has a tendency to hide in different improbable locations while giving messages to Gadget.
  • Jerkass: He's a complete jerk to Gadget in the sequel to the live-action film.
  • Jerk with a Heart of Gold: In the first live-action film, he dismisses Gadget as being useless but later congratulates him for bringing down Dr. Claw.
    • Also this in Inspector Gadget's Last Case, where he fires Gadget for what he perceived as Gadget's bumbling getting worse and worse (it was actually a plan by Claw to upstage him), but allows Gadget back into the force at his old rank when he then manages to bring Claw down once again.
  • Leitmotif: Chief Quimby's theme only lasts a few seconds, but it's played Once an Episode when Gadget finds him to get the episode's assignment. It also occasionally plays when the police arrive at an episode's close.
  • Mr. Exposition: He's the one who tells Gadget what Dr. Claw and M.A.D. are up to.
  • Phrase Catcher: Gadget says "Is that you, Chief? You're where?" whenever Quimby contacts him on the Top Secret Gadget Phone.
  • Once an Episode: Chief Quimby shows up in every episode to give Gadget his assignment, and Gadget ends up giving it back to him when it self-destructs. In every episode. Quimby inevitably shows up again at the end of the episode to arrest the MAD agents and congratulate Gadget for completing his assignment.
  • Something Only They Would Say: Apparently, only the real Gadget would malfunction without warning and injure him with his gadgets. Quimby uses that fact to Spot the Impostor in one episode.

    Corporal Capeman 
Voiced by: Townsend Coleman, Patrick Préjean (French voice)

  • Fat Idiot: He is rather portly and is even dumber than Gadget.
  • Hollywood Nerd: Capeman wears glasses.
  • Jerkass: One of the reasons why most fans despise him is because he frequently picked on Brain for no apparent reason.
  • Sidekick: Desperately wanted to be this to Gadget and became his sidekick when he inadvertently defeated the episode's M.A.D. agent.

Voiced by: D.L. Hughley (1999 film and Inspector Gadget 2), Jaleel White, Bernie Mac (Inspector Gadget's Biggest Caper Ever)

  • Brought to You by the Letter "S": Typically, the letter "G" is somewhere on the exterior of the car.
  • Cool Car: In the 1980s series, the Gadgetmobile is a van that can transform into an interceptor mode that resembles.... well, a lot of 1980s sports cars, like the Lotus Esprit, Toyota Supra, the DeLorean, or (befitting the show's French origins) the Matra Murena. In the live-action films, it's a 1960s Lincoln Continental.
  • Enormous Engine: In the live-action movies, a jet engine can sprout from it and clamp onto the trunk.
  • Ludicrous Speed: As the AI points out, he has two speeds — "Fast" and "Whoo! What was that?!"
  • Purple Is Powerful: Inspector Gadget 2 has him with a purple paint job.
  • Ret-Canon: His personality and features from the 1999 film are so liked that they appear in later cartoons. Crosses over with Canon Immigrant.
  • Sentient Vehicle: He is a living car.
  • Suddenly Voiced: Starting with the 1999 film.
  • Talking Appliance Sidekick: Since 1999, he is this to Gadget.
  • The Voiceless: Pre-1999 media had the Gadgetmobile as a non-sentient vehicle.
  • Transforming Vehicle: The original version could transform from a compact van into a high-speed, pursuit-oriented sportscar.

    Gadget Model 2
Played by: Elaine Hendrix

  • Action Girl: More competent and capable than Gadget himself.
  • Borrowed Catch Phrase: Like her predecessor, she uses "Go-Go Gadget [the gadget she is supposed to use]".
  • Canon Foreigner: She is made for Inspector Gadget 2.
  • Not So Above It All: While she was made to be a more serious and competent version of Gadget, as the film goes on, his behavior begins to rub off on her, and she gains a sense of humor.
  • Ridiculously Human Robots: Unlike Gadget, she's a fully robotic android. However, she can clearly feel and express emotions, she is capable of feeling love, and at one point, she even appears to cry.
  • Robot Girl: She is a female android that is Gadget's successor.


    Dr. Claw
Voiced by: Frank Welker (original series), Don Francks (original series, some lines in "Race to the Finish", "M.A.D. Trap", "Basic Training"), Brian Drummond (Gadget and the Gadgetinis, Inspector Gadget's Last Case, Inspector Gadget's Biggest Caper Ever), Victor Désy and Georges Atlas (French voice)
Played by: Rupert Everett (1999 movie), Tony Martin (Inspector Gadget 2)

  • Adaptation Name Change: Most incarnations of the character give him the name "Dr. Edward Claw", but the 1999 film (and, presumably, its sequel) gives him the Alliterative Name Sanford Scolex, with "Claw" only being a nickname.
  • Ambiguously Human: With a voice like that...
  • An Arm and a Leg: In the movie, he gets his signature claw when a bowling ball crushes his hand.
  • Angry Fist-Shake: He often shakes his fist after every defeat.
  • Animal Motifs: Cats. As well as having his right hand cat, the insignia of his evil corporation is a stylized cat face, which Claw can be seen wearing as a ring, as well as his vehicles being styled after it.
  • Arch-Enemy: Gadget and Claw consider each other to be personal enemies.
  • Berserk Button: Just seeing Gadget, or even simply having to mention his name, can make Dr. Claw angry enough to smash holes in his desk or shatter diamonds with his bare hands.
  • Big Bad: He is the main antagonist, as he is the leader of M.A.D.
  • Big Eater: Movie!Claw was this sometime before the movie begins.
  • Camp Straight: In the live-action movie.
  • Captain Ersatz: Of Ernst Stavro Blofeld.
  • Card-Carrying Villain: Officially, M.A.D. stands for "Mean and dirty".
  • Catch Phrase: "I'll get you next time, Gadget! Next time!"
  • The Chessmaster: Many of his plans involve steps taken to try and prevent Gadget from stopping him.
  • The Comically Serious: Claw is rarely comedic himself, and his menace is played largely straight. This sets up the joke of his character: he's a spy villain played straight, unaware that instead of a master criminal empire he's Surrounded by Idiots, and instead of facing an unflinchable detective nemesis, he's actually being defeated by an idiot and a child.
  • Corrupt Corporate Executive: For the movie. Also any episode that revolved around MAD setting up a legitimate business and then wiping out their competition by some underhanded means, leaving Dr. Claw with a monopoly.
  • Diabolical Mastermind: Quite a lot of his plans were complex, such as finding a sealed weapon of mass destruction or hiding stolen diamonds inside chocolates.
  • Enfante Terrible: Was implied to be one when he was a child. He mentions that he desired possession of the Crown Jewels since his youth in "Gadget's Clean Sweep", his mentor Les Renowned introduced in "Gadget meets the Clan" can be seen in a picture lecturing a younger Claw holding a lollipop, and the 1992 Christmas special had Dr. Claw mad at Santa Claus for never getting him the dirty tricks sled he wanted as a child.
  • Evil Is Petty: In "King Wrong", he hatches a revolution in Pianostan for the sole purpose of having Gadget, who looks exactly like the title character, killed.
  • Evil Laugh: He frequently laughs when his Evil Plan comes along.
  • Evil Plan: Just about every episode has him plan to do something evil. Some of his most heinous schemes involve setting up an enterprise while using underhanded methods to eliminate the competition, one example being in "Dairy Farm" when he has M.A.D. sell overpriced dairy products while using a device to prevent cows from other farms from giving milk.
  • Evil Sounds Deep: He speaks in a deep, sinister, gravelly voice. Averted in the 1999 film.
  • Exact Words: From the episode "The Invasion" when M.A.D. Cat attempts to sing along with Dr. Claw, only for Claw to berate him:
    Dr. Claw: I said, I feel like singing!
  • The Faceless:
    • Not only faceless, but also bodiless as only his hands and arms are ever shown to the viewers. His action figure finally does reveal his face, and in a brilliantly devious marketing plot, the original packaging for the figure covered up his head with cardboard — you had to buy the toy to finally see Claw's face. The Super NES game briefly revealed part of his face before the Final Boss, half covered-up by his jet, and only for a split second; it's the same design as the action figure.
    • In the movie, he's seen fully all the time. The sequel opts to show his face in shadows most of the time, but some details can still be seen.
  • Faux Affably Evil: He sometimes acts nice and friendly, but it does nothing to hide the despicable person he is.
  • Formerly Fat: In the 1999 film, he was obese and became slim as he went on a diet.
  • Hook Hand: His origin in the movie.
  • Joker Immunity: As shown in the second live-action film and the animated direct-to-video film Inspector Gadget's Biggest Caper Ever, not even capturing him and putting him in jail can stop Claw.
  • Karma Houdini: Usually played straight in that he always avoided getting arrested, but some episodes downplay it and have Claw suffer a minor problem as he makes his getaway, such as being trapped at the bottom of the arctic waters in "Gone Went the Wind", getting frozen in "The Quimby Exchange", and getting hit by the blast of the Red Rose potato gun in the final episode "Gadget and the Red Rose".
  • Large Ham: "HeeheeheeheeHAHAHAHAHAHAHAHA!"
  • Meaningful Name: Subverted in the sense that he clearly does not have a claw, but metallic gloves instead.
    • Played Straight in the movies, however, as he has an actual robotic claw in place of one of his hands.
  • Morally Ambiguous Doctorate: A villain named Doctor.
  • Right-Hand Cat: What Dr. Claw has (see MAD Cat below)
  • Sigil Spam: He's enough of a megalomaniac enough to place the MAD logo on literally everything, even his personal vehicles and the back of his chair. Of course, Gadget never notices.
  • Sinister Surveillance: The only thing he's ever shown doing.
  • Slouch of Villainy: Throughout the series, he only watches the events from his lair or car.
  • Super Strength: He's strong enough to crush a diamond with only one hand and bend a barbell.
  • Surrounded by Idiots: Even with Penny always screwing up his plans, you sometimes think he might be ruling the world by now if his henchmen weren't all so stupid.
  • Take Over the World: His ultimate goal.
  • Ultimate Evil: While we never see him aside from his arms, the way some of his agents act intimidated while talking to him suggest that he's always hidden because his appearance is terrifying.
  • Unknown Rival: Claw is so focused on Gadget that he completely fails to realize that it's Penny who manages to undo his plans in the end.
  • Vile Villain, Saccharine Show: Gadget himself and many other characters tend to be goofy and prone to slapstick, whereas Dr. Claw is a sinister villain who speaks in a deep, ominous voice. Several of his plans even involved trying to kill someone.
  • Villain Decay: In the 2015 series. Story-wise, he is theoretically either out of practice or losing his touch.
  • Villain: Exit, Stage Left: Whenever he's actually at the scene of a MAD activity, he'll typically escape in the MAD Mobile once the Gadget family ruins his scheme.
  • We Will Meet Again: "I'll get you next time, Gadget! Next time!"
  • White Hair, Black Heart: His action figure gives him white hair.
  • Would Hurt a Child: The rare moments he catches Penny snooping around, he's usually not above putting her in harm's way, or at the very least, using her as bait for Gadget.
  • Yellow Eyes of Sneakiness: When his face is briefly shown in the SNES game.

    MAD Cat 

  • Butt-Monkey: Can occasionally be this to some of Dr. Claw's tantrums.
  • Cats Are Mean: Supposedly. He doesn't really do anything evil, though, and in many cases he actually comes off as more of a victim to Dr. Claw's outbursts.
  • Evil Laugh: Has a great one made of cat hisses. It's pretty much the only way you can tell that he's a bad guy.
  • Gender Flip: Is female in the 2015 series.
  • Right-Hand Cat: Always seen at the lap of his owner.
  • The Pirates Who Don't Do Anything: He's a villain, but does little aside from lounging around while Dr. Claw either pets him or takes his anger over failed plans out on him. Averted on a few rare occasions when he pushes a button on Dr. Claw's computer or on the MAD Mobile's control panel.
  • Progressively Prettier: Much more adorable in the 2015 series.
  • Silent Snarker: He sometimes rolls his eyes while Dr. Claw gloats.
  • Speech-Impaired Animal: Unlike Brain, who occasionally says a few words in a Scooby Doo style of beginning every word with "R", M.A.D. Cat doesn't actually talk aside from laughing and meowing.
  • Team Pet: An evil team's pet.

    The Great Wambini and the Lesser Wambini 
Voiced by: Louis Nye (Great Wambini), Frank Welker (Lesser Wambini), Christian Pelissier (French voice of Lesser Wambini), Yves Barsacq (French voice of Great Wambini)

  • Karma Houdini: Are the first of the second season's recurring M.A.D. Agents that avoid arrest.
  • Meaningful Name: The Great Wambini is a highly skilled magician while his lackey the Lesser Wambini is only capable of lame and underwhelming tricks.
  • Stage Magician: Their usual disguise.
  • Those Two Bad Guys: They are never seen without one another.

    Professor Dummkopf 
Voiced by: Louis Nye, Serge Lhorca (French voice)

  • Beard of Evil: He has a big brown shaggy beard.
  • Herr Doktor: He has the accent and his name is even a German word.
  • Karma Houdini: He never gets arrested in any of his appearances.
  • Mad Scientist: In his three episodes, he has tried to use a shrink ray on Gadget as well as sending a quintet of imps and a hulking brute he created himself to kill him.
  • Paper-Thin Disguise: He often uses one in the episodes featuring him.
  • Unfortunate Names: His surname is German for "idiot".

    Dr. Spectrum 
Voiced by: Louis Nye, Patrick Préjean (French voice)

  • Bald of Evil: He has no hair.
  • Karma Houdini: Yet another recurring M.A.D. Agent who never gets caught.
  • Knight of Cerebus: Unlike most of the mad scientist M.A.D. Agents on the show, he has very few humorous traits and "Bad Dreams are Made of This", one of the episodes featuring him, is Darker and Edgier as it involves everyone in Metro City being tormented by bad dreams and even has Brain experiencing a nightmare where it is implied that M.A.D. Cat killed him.
  • Mad Scientist: He's invented tablets that become "ghosts", a device that enables people to teleport through telephones, and a machine that makes people suffer nightmares.

    Dr. Null and Dr. Void 
Voiced by: Andy Goldberg (Dr. Null), Frank Welker (Dr. Void)

  • Creepy Twins: They are both virtually identical.
  • Karma Houdini: They never get captured in any of the three episodes featuring them.
  • Verbal Tic: In their first appearance, they would often say the exact same phrase, but with differing usage of words. They reprise this in their third and final appearance.

    Thelma Botkin 
Voiced by: Rita Taggart, Jeanine Forney (French voice)

  • Karma Houdini: She is seen arrested at the end of the first episode with her, but the next has her free and back with MAD with no explanation. She does not get arrested in her next two appearances.
  • Time Travel: Her episodes had her attempting to go back in time and kill Gadget's ancestors.

    Les Renown 
Voiced by: Ronald E. House, Patrick Préjean and René Bériard (French voice)

  • Greater-Scope Villain: He is Dr. Claw's mentor and therefore is indirectly responsible for the existence of Claw's crime organization M.A.D.
  • Karma Houdini: The final recurring "villain" of Season 2 who is never arrested, although whether or not he really is a Houdini is arguable since he isn't really seen committing any crimes other than conspiracy (he introduces Dr. Claw to other elderly criminals who do get arrested at the end of their respective three episodes).
  • Old Master: At least Dr. Claw seems to regard him as one; Claw claims Renown mentored him in the criminal arts.
  • Punny Name: His name is a pun on "less renowned", referring to how Dr. Claw is more well known than he is.

Played by: Matthew Broderick

  • Canon Foreigner: He is made for the 1999 film.
  • Chekhov's Gun: When he is first activated, a close-up of him shows a tarantula in a plastic sphere in his body. During his fight with Inspector Gadget, he unleashes this tarantula as a weapon.
  • Evil Knockoff: He was made by Sanford Scolex as an evil version of Gadget.
  • Off with His Head!: His head was detached by the end.

Alternative Title(s): Inspector Gadget 2, Inspector Gadget 1999


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