Whenever he gets in a fix, Felix reaches into this. This magical trinket is Felix's most prized possession, a magic bag of unknown origin that can do virtually anything Felix wants or needs it to be, whether its spawn an escalator, turn into a fully functional aircraft, become a portal to Mars, and so on. While the bag mostly serves as a prop, several episodes imply that it has a degree of sentience to it. The Professor is intrigued by the bags versatile nature and frequently wants to steal it from Felix so he can use it for his own ends—fortunately, the bag willingly refuses to serve him in the few times he's even able to snatch the bag for himself.
The bag also made appearances in The Twisted Tales of Felix the Cat, where it once again serves as a helpful prop, but in the episode "Viva Lost Wages", Felix's relationship with the bag of tricks is played as a romance.
Despite being one of the most famous parts of the Felix series, it wasn't there from the start—it was introduced in the 1950's Joe Oriolo cartoons, 40 years after Felix made his cartoon debut. Word of God has it that the polka dot patterns of the bag were based on some wallpaper in Joe Oriolo's house. Some of the cels of the Magic Bag even had pieces of said wallpaper glued to them!
- Adapted Out: The Magic Bag is completely absent from the Betty Boop & Felix newspaper comics.
- Adaptational Wimp:
- In the NES and Game Boy tie-in game, the Magic Bag of Tricks goes through this. In the Joe Oriolo cartoons, it was an outright Story-Breaker Power that could turn into or create anything and could get Felix out of any situation. The video game significantly nerfs its powers to where it can only do four different attacks, three of which need power ups and have a time limit. Understandably, it would be impossible to properly transition the Bags limitless abilities into a video game, and giving the bag limits ensures that the gameplay still has challenge.
- It gets hit with this even worse in Baby Felix Halloween. It's not even a regular gameplay item anymore—it's reduced to a trivial item that merely refills your health bar when you grab it.
- Animate Inanimate Object: It's a sentient Bag that can do magic.
- Awesome Backpack: The bag of tricks can turn into or contain anything Felix needs.
- Bag of Holding: The Bag of Tricks has no limit on what it can store inside of it, and anything can pop out of it, including an escalator, food and even a boxing kangaroo in the first episode of the TV series.
- Canon Foreigner: It was created just for the Joe Oriolo cartoon, which aired 40 years after Felix's debut.
- Canon Immigrant: Despite being a relatively new addition to the series, it became so strongly associated with Felix that it popped up in newer Felix series beyond the Joe Oriolo cartoon, such as Twisted Tales of Felix.
- Companion Cube: The bag is implied to be this to Felix in the Joe Oriolo cartoons, and it's taken further in Twisted Tales.
- Cool Plane: In "Electronic Brainwasher", Felix escapes from the Professor's Lab by turning his Magic Bag into a large plane with a rocket engine, complete with the bag's polka dotted patterns spread across it.
- Cool Ship: In underwater levels of the NES game, the bag can turn into a torpedo launching submarine.
- Cool Starship: In world 8 of the NES game (world 5 in the Game Boy version), Felix's bag turns into a slick one-seater spaceship that can fire lasers and has complete freedom of movement. The only downside is that it has a limit to how long it can be used without collecting milk bottles (in the NES game, anyway—it has no such weakness in the Game Boy version), and one hit makes it keel over.
- Demoted to Extra: In Baby Felix Halloween, the Magic Bag has no role in the story and only sporadically appears as an optional health power-up.
- Deus ex Machina: According to Don Oriolo, the Magic Bag was created for the Trans-Lux cartoons to partly serve as this and because Trans-Lux wanted Felix to be someone who could solve anyone's problems by any means. The series also had crushing deadlines (they had hours to write the scripts for each episode, and had to turn out a few episodes every week) so there wasn't any time to overthink or analyze the stories. With that said, Joe Oriolo intentionally wrote many episodes without the bag in mind (I.e. Vavoom Learns How to Fish) or wrote episodes where the conflict is caused by separating Felix from his bag (i.e. The Vacation Mirage) to keep the stories interesting."The Magic Bag was an element created to give an easy way out in the five-minute [TV] episodes... it replaced the piercing of the fourth wall in simpler terms for a series with such a limited budget. They wanted a "younger" show. That's why Jack Mercer spoke in slow deliberate tones. Felix was to be everybody's best friend-who could solve any problem anyone had, even if it meant taking the easy way out with the Magic Bag."
- Expy: The Magic Bag was meant as a streamlined replacement for another magical prop Felix used in the past, specifically a flying carpet that occasionally popped up in the silent films, and regularly appeared as a means for Felix to travel in the later comic books.
- Empathic Weapon: Implied to be this in the Joe Oriolo cartoons, and taken even further in Twisted Tales.
- Face Ship: In underwater levels of the NES game, Felix can turn the bag into submarine as a power-up. It's shaped like his head, and it spits torpedoes as an attack.
- Green Lantern Ring: The bag has no limits to what it can or can't transform into, and it only has a handful of known weaknesses.
- Iconic Sequel Character: Despite being one of the most iconic parts of the Felix series, it didn't show up until the Joe Oriolo cartoons, made 40 years after Felix made his debut.
- Imagination-Based Superpower: The bag has no known limits to what Felix wants it to transform into or create.
- Loyal Phlebotinum: The Magic Bag of Tricks is implied to be sentient, and most of the time, it works for Felix and only Felix. The handful of times Professor manages to get his hands on it, the bag will violently resist every attempt he makes to use it. Felix can even whistle for it to come back to his sidein "Felix Out West", it even morphs into a rabbit and hops back to Felix, licking him on the face like a dog before it turns back to normal. With that said, Poindexter did figure out how to use the Bag in "Martin the Martian Meets Felix the Cat", but that was only so he turn it into a portal to Mars so he could meet Martin, so it's not that Professor is outright incapable of using it so much as the bag knows he's a bad guy and won't allow him to exploit its powers.
- Made of Indestructium: The bag is virtually impossible to damage or destroy. It's taken quite a few beatings from Professor in the few times he gets his hands on it, right down to using piles of dynamite to blow it open, but they don't even singe the thing. It's transformations can receive damage or wear (such as its buzzsaw form getting worn out in "The Professor's Instant Changer"), but even that damage goes away when it returns back to normal.
- Magic Wand: It serves a similar purpose to it, except its a bag.
- Self-Guarding Phlebotinum: The Bag is more than capable of defending itself from Professor should it fall into his hands. It has been known to violently attack or backfire on Professor whenever he tries to exploit its abilities, like turning into a giant balloon in "Felix Out West" or chasing Professor around like an angry dog in "Felix In Egypt".
- Sentient Phlebotinum: The Bag is strongly implied to be sentient and have a personality of its own.
- Shapeshifter: The Bag is capable of turning itself into objects like a fully functional rocket plane, and it is fully capable of transforming on its own without Felix. In "Felix Out West", it even turns into a rabbit and hops back to him, licking him as if it was a dog. In "Step Right Up", Felix turns it into an elephant to take on Peeking Duck and his goons, but it gets distracted by a cotton candy machine and walks away to eat out of it.
- Story-Breaker Power: The bag can summon or turn into anything Felix needs, is virtually indestructible and has very few weaknesses, and it is impossible for anyone besides Felix and Poindexter to exploit it. In fact, the bag was designed for this very purpose. The reason for its addition to the series was because Trans-Lux had a mandate that Felix always had to win and had to be able to help anyone out in any way possible, even if it meant taking the easy way out in a story with the tool. Joe Oriolo, the showrunner of the original TV series, realized that it was never specified that Felix always had to be in stories which needed the bag, and wisely made sure not to overuse it—many episodes don't feature the bag at all, and even episodes that do have it tend to use the Bag as a last resort or for something more mundane. Better yet, some episodes (such as "The Vacation Mirage" or "Vavoom Learns how to Fish") create a source of conflict by separating Felix from his bag or have Felix forget to bring his bag altogether, ensuring he can't just use the bag to instantly solve the conflict.
- Tank Goodness:
- In the climax of "Felix in the Mid-Evil Ages", Felix wins the duel against the Professor by turning his Magic Bag into a very large yellow tank, which Professor crashes his metal horse right into.
- In the NES game, one of Felix's power-ups is to turn the bag into a mini-tank, which shoots out rubber balls that can kill any enemy in the game in one hit and make short work of bosses, at the cost of a slow firing rate and its shots flying in an arc.
- Weaksauce Weakness: Going by Felix The Cat: The Movie, the only apparent weakness the bag has is that if someone else grabs the bag while Felix is holding it, it instantly negates whatever form it was using. That doesn't stop it from attacking Professor and transforming of its own accord when he tries to abuse it or exploit it, though, such as in Felix Out West.
- Unmoving Plaid: The bags polka dot patterns usually don't wrap around the bags form and just face the viewer in a two dimensional way. Don Oriolo claims the polka dot pattern of the bag was based on some wallpaper his dad had and often used to glue to the cels of the bag of tricks.
- The Voiceless: Justified, as it's a magic bag.
Voiced by: Jack Mercer (Trans-Lux TV series), Chris Phillips (The Movie), Pat Fraley (Twisted Tales), Toshiyuki Morikawa (Baby Felix, Japanese voice), Don Oriolo (Baby Felix, English Dub), Jason Marsden (Felix Saves Christmas)
The main foe of Felix in the Trans-Lux TV cartoons, The Professornote is an eccentric, grouchy mad scientist. His modus-operandi in life is to steal Felix's magic bag of tricks for his own use—stubbornly failing to accept throughout the years that the bag will not work for anyone but Felix. He also tends to commit heists for monetary gain, sometimes with the help of his lackey Rock Bottom, but Felix is always around to stop them. With all that said, he won't be giving Lex Luthor a run for his money—he's barely a threat to Felix at all, and has never scored a real victory over him. And he doesn't seem to take the rivalry all that seriously either—on occasion, he'll put aside his animosity towards Felix and hire him as a babysitter to watch over his nephew, Poindexter.
Tropes associated with The Professor:
- Absent-Minded Professor: This is probably his greatest weakness. He has impressive intellect, but he can't even remember his own name half the time, and he tends to make some serious lapses in judgement that give Felix a chance to get the edge over him.
- Affably Evil: He may be a villain, but he's a rather pitiful, eccentric character—most of his crimes amount to petty thievery or just screwing around with Felix. In some episodes, he isn't even an enemy to Felix.
- Aesop Amnesia: He never seems to accept that the bag won't work for him. Given his intelligence and persistence, he's probably just too stubborn to give up figuring out how to use it.
- Bad Boss: He's quite disrespectful and rude towards his hired hand Rock Bottom, not that you could blame him.
- Badass Moustache: And a very expressive one too, since it almost always covers his entire face.
- Bald of Evil: Although in "Felix Saves Christmas", he was shown to have a full set of poofy hair as a kid.
- Big Bad Wannabe: He's the main villain of the made-for-TV cartoons, although he's not very good at it most of the time. His threat is eclipsed by that of the Master Cylinder.
- Big Ol' Eyebrows: He occasionally has these, mainly when he gets angry. In "Attack of the Robot Rat", Professor is redesigned, with among the changes being his white eyebrows being replaced with big, bushy black ones.
- Brains and Brawn: He's the brains, and his crony Rock Bottom is the brawn.
- Canon Foreigner: He was an original character created exclusively for the made-for-tv cartoons, made decades after the original theatrical cartoons and comics. Tellingly, he very rarely showed up in the classic Felix the Cat comics made around the same time, although he did make appearances in newer Felix comics.
- Cartoonish Supervillainy: Professor plays this as straight as an arrow.
- Child Prodigy: In "Electronic Brainwasher", Professor claims that when he was nine months old, he had read a thousand educational books and made his first stink bomb unaided (his family moved to Mexico the next day) and he launched his first moon rocket at the age of eight (albeit a toy one that was a dud).
- The Chew Toy: It's safe to say that Felix's universe has it in for him and will go out of its way to ensure that his schemes never work, and due to being a rather hapless villain, he tends to get put through the wringer a lot, be it thanks to Felix or by his own hand.
- One of the Twisted Tales of Felix episodes, "Attack of the Robot Rat", takes his hopelessness at defeating Felix and plays it for laughs, with him now being a washed up, pathetic old coot who lives with Rock Bottom in a derelict apartment. Felix, in an uncharacteristically mean moment, even takes time to rub salt in the wound after he gets through effortlessly trashing the Professor's giant robot rat.
- Classic Villain: He has staple villain traits of Pride and Ambition.
- Composite Character: According to Don Oriolo, the Professor was not inspired by any specific character from a previous Felix work, but was an amalgam of various "professorial" characters that appeared in the Felix the Cat comics throughout the years.
- Comically Lop Sided Rivalry: The Professor's rivalry with Felix, which is completely one sided on his part (Felix is an easygoing fellow who just sees Professor as a nuisance at worst and otherwise a neighbour, and he is never the instigator of the conflict when the mad scientist is around) and never, ever works out in his favor.
- Crazy-Prepared: In "Into Outer Space", his entire lab is rigged so that he can seal any entryway or window to prevent escape, including a mousehole that Felix tries to squeeze into!
- Cut Lex Luthor a Check: He has a fairly large laboratory, superb intellect and is very resourceful and capable of building impressive equipment, including a Time Machine in "Felix and the Mid-Evil Ages"—but he wastes most of it on things such as stealing Felix's bag, or committing money heists.
- Decomposite Character: According to a staffer on The Twisted Tales of Felix the Cat, the Professor's revamp introduced in "Attack of the Robot Rat" would have been retconned into a different character from Joe Oriolo's Professor if the show hadn't been cancelled so early. This was due to an order from Don Oriolo, who strongly disliked how drastically the Professor's personality was altered for that episode.
- Deface of the Moon: In Felix the Cat Saves Christmas, during his Villain Song "It's Not Easy Being Mean", Professor launches a rocket to the moon (with Rock Bottom tied to it), which blows off part of it and turns it into a crescent moon.
- Demoted to Extra: In the "Twisted Tales of Felix" cartoon, where he only appears in one episode (Attack of the Robot Rat) and with a heavily revamped design, and is mentioned in passing in The Extraterrestrial Robot. He was planned to make more appearances (albeit with a retcon that would have turned his redesigned form into an entirely seperate character) but the show was abruptly cancelled before that could happen.
- The Determinator: He will stop at nothing to get Felix's bag, even after constantly learning over and over that the Bag will never work for him.
- Didn't Think This Through: Even he realizes how goofed up by sending Felix away in a satellite along with the Magic Bag in "Into Outer Space". He builds a machine to kick himself in the butt for it in the ending."What a fool I've been! BAH!"
- Dub Name Change: In the German dub of the series, he's called Professor Besserwisser (German for Know-It-All).
- Enemy Mine: In the Movie, he's forced into this with Felix due to having to save Oriana, although it's also a way for him to get close to stealing the magic bag—which also becomes ancillary once the Professor finds gold and tries—and fails—to smuggle it through the Dimensporter.
- Even Evil Has Loved Ones: He genuinely cares about his nephew Poindexter. Although In "Venus and the Master Cylinder", he does briefly send him off to the Master Cylinder as a pupil in exchange for a million dollars, believing the experience would be good for Poindexter, but he quickly comes to regret it once Cylinder enslaves Pointdexter for his own ends, and has no intention of honoring his side of the bargain.
- Evil Is Petty: In "Felix Saves Christmas", he uses a weather control device to keep Santa Claus from delivering presents and thus ruin Christmas for everyone, all because he had unpleasant memories of Christmas as a child.
- Evil Laugh: Whenever he's got the cards stacked against Felix, he lets out a boistrous, raspy sounding laugh.
- Evil Uncle: While he mostly acts benevolent, if stern, to his nephew Poindexter, he is a bad guy and obviously isn't setting much of an example for Poinsy to follow.
- Failure Is the Only Option: The Professor has never won a long term victory over Felix. When it comes to getting that Bag of Tricks, he has as much luck as Wile E. Coyote does at catching the Road Runner. And even when he does manage to get the bag, he can't even use it or figure out how to use it.
- Foil: Meant to be this to Felix. Whereas Felix is friendly, easygoing and generally content with what he has, Professor is unpleasant, prideful, and greedy in personality.
- For the Evulz: While mainly driven by either monetary goals or his fruitless attempts at stealing Felix's Magic Bag, in some episodes of his actions dip into being driven by a gleeful sadism that supersedes any previous goal, such as mercilessly tormenting Felix with his Mirage Maker in "The Vacation Mirage", even after he had managed to seperate the cat from his magic bag.
- Genius Ditz: Professor is a goofball, but he's also very tech savvy and has managed to build some impressive machinery, including a Time Machine in "Felix in the Mid-Evil Ages".
- The Grinch: In "Felix Saves Christmas", Professor is revealed to hate Christmas because of bad childhood memories surrounding it, so he decides to ruin it for everyone by using a weather control device to shroud the earth in a very thick snowstorm so that Santa Claus can't deliver his presents. His plan is foiled by the end and he winds up in prison, but he comes around once he finds out Santa left him a present in his cell despite his misdeeds.
- Go-Karting with Bowser: When he isn't pursuing Felix to steal his Bag of Tricks, he's hiring him to babysit Poindexter. Naturally, these tend to be episodes where the Bag doesn't appear.
- Harmless Villain: He and Rock Bottom have to rank as two of the most pathetic villains in western animation. Both of them are either so nonthreatening, incompetent (or in Professor's case, very prone to absentmindedness and big lapses in judgement) or just plain unlucky in their villainy, that they're barely a threat to Felix on their best days. They'll do themselves in with their schemes as often as Felix can stop them, and Professor gets put through the wringer a lot because of this—and because of orders from distributor Trans-Lux, Felix always had to come out on top over them. The Professor can't even succeed in his goal of using Felix's Magic Bag of Tricks anyway—the bag will only work for Felix and violently resists each attempt Professor makes to use it, but he's too stubborn to accept this. It's not really clear how seriously they take themselves as villains either, due in part to the shows breakneck writing schedule (they had mere hours to write each script) and the series light continuity-their rivalry is sometimes forgotten altogether and Professor hires Felix to babysit Poindexter or hires him as an assistant with no ill will between the two. In "Public Enemies Number One and Two", both he and Rock Bottom even throw a sincere surprise birthday party for Felix. His pitiful nature was part of the reason Master Cylinder was eventually introduced to the series-they had to present something resembling a real threat to Felix.
- Not-So-Harmless Villain: With that said, there have been a few episodes and moments where the Professor gets his act together and proves he can definitely be a legitimate threat to Felix. In "Into Outer Space", he completely corners Felix in his lair by sealing off every possible exit (including a mousehole)—Felix only gets away because of a big lapse in judgement on Professor's part (namely, helplessly launching him off into outer space, which ultimately works out in Felix's favor). In "Blubberino the Whale", he sicks a killer shark after Felix and keeps him on the run. In "Captain No Kiddin", he keeps Felix on the ropes in a swordfight, successfully corners him on the bow of his pirate ship and knocks Felix's sword out of his hand. In "The Vacation Mirage", Professor has the deck completely stacked against Felix with his powerful Mirage maker, separating him from his Magic Bag in the middle of a very hot desert, and constantly tormenting him with a barrage of illusions that are so realistic, that Felix is powerless to break them—it was only by sheer dumb luck that he manages to defeat Professor (he stumbles across his lost bag and turns it into a plane, which accidentally crashes into the invisible machine). "The North Pole and a Walrus Hunt" shows another rare instance where he can be a real threat, if only for a brief moment—he pulls out a realistic firearm and clearly intends to kill Walter the walrus with it, but Felix narrowly stops him in time.
- The Heavy: Many of the TV series plots are set into motion by him. Felix is usually just minding his own business most of the time until the Professor tries to hound him for his bag or is seen committing a crime, which prompts Felix to take the initiative to stop him. In some episodes, like "The Gold Car and County Fair" and "Felix's Gold Mine", he and Rock Bottom get more screentime and action than Felix himself!
- HeelFace Revolving Door: Due to how hastily written the Trans-Lux episodes were and the series rather loose continuity, his relationship with Felix is constantly in flux. One episode, he's just after the Magic Bag for his own ends, with Felix just being an annoying obstacle to that goal. In episodes like "The Vacation Mirage", he is portrayed as downright sadistic and goes out of his way to torment Felix, even after he's separated from his Magic Bag. And yet in other episodes, he willingly hires Felix (who always seems to be willing to give Professor the benefit of the doubt) as a babysitter to watch over Poindexter, or hires him as a lab assistant, where he just acts grouchy at worst to Felix.
- Herr Doktor: Jack Mercer gave him a raspy, stereotypical German accent.
- Humongous Mecha:
- In "King Neptune's S.O.S.", he uses a giant robotic octopus to steal King Neptune's treasure.
- In "Attack of the Robot Rat", he uses a giant robotic rat to attack Felix.
- Ineffectual Sympathetic Villain: He's a bad guy for sure (sans the odd day where he needs Felix as a babysitter or assistant), but he's so pitiful, incompetent and unlucky at actually being a villain, that you almost feel bad for him sometimes.
- Jerkass: Even when he isn't fighting over the Magic Bag, Professor tends to act grouchy and unpleasant towards Felix.
- Jerk with a Heart of Gold: For all the crap he puts others through, he's shown to have a few virtues. He treats his nephew Poindexter quite well, and he's willing to bury the hatchet with Felix on occasions like his birthday or when he needs someone to babysit Poindexter. In "Stone Making Machine", he comforts a visibly upset Rock Bottom and gives him a pep talk. Even in "Venus and the Master Cylinder", when he's enticed by Master to have Poindexter apprentice under the cyborg for a year in exchange for a million dollars, he honestly thinks the experience will be good for the kid (although it quickly turns out he's dead wrong about that).
- Kick the Dog: In "Blubberino the Whale", he disguises himself as a mermaid with a bowl of fruit to lure Felix, who was marooned and starving in an ocean, towards him, only to ditch the disguise and throw the fruit away, all while laughing at his misfortune and then sicking a killer shark after the cat.
- In "The Vacation Mirage", he's easily at his most sadistic—even after he separates Felix from his Magic Bag, he goes out of his way to torment him with his Mirage Maker, all while he's clearly drying up in the hot desert heat.
- Literal Ass-Kicking: In "Into Outer Space", after he botches two attempts to get the Magic Bag from Felix, he builds a contraption to kick himself in the butt for his failure.
- Mad Scientist: He spends most of his time creating inventions to try and help him steal Felix's bag of tricks.
- Manchild: Despite his intellect, he acts very childish for his age, even throwing tantrums when he fails to get Felix's bag.
- Master of Disguise: In "Finally, The Magic Bag Is Mine!", Professor eschews his typical cheap disguises and actually manages to use a chain of convincing disguises to trick Felix.
- Meaningful Name:
- His dubious full name, Professor Nutty Nut-Meg, given his eccentric personality.
- His German dub name, Besserwisser, which is German for Know-It-All, also counts.
- Meaningless Villain Victory: In "Redbeard the Pirate", Professor and Rock Bottom successfully steal the pirate treasure chest Felix found-but upon opening it, they find out there's nothing inside it, save for Redbeard's Ghost, which appears and scares Professor and Rock Bottom away.
- Morally Ambiguous Doctorate: He's a villain who goes by "Professor".
- The Napoleon: He's barely taller than Felix, and hot blooded and aggressive in personality.
- No Name Given / Everyone Calls Him "Barkeep": Zig-Zagged; He is normally just called "The Professor", and the episode "Captain No-Kiddin" even made fun of this, showing that he can't even remember his real name. However, "The Invisible Professor" and some merchandise gives his full name as Professor Nut-Meg, but this is usually forgotten—even the official website for the series just gives his name as The Professor. And in the German dub, he was called Professor Besserwisser (German for Know-It-All).
- Offscreen Villain Dark Matter: Professor is somehow able to build and get access to equipment and a large lab that allows him to commit all of his crimes, even though many of the series plots involve him trying to commit robberies. It's not clear if he's strapped for cash or just plain greedy.
- Poke the Poodle: Some of his schemes tend to be really petty. "Balloon Blower Machine" has him and Rock cornering the market on rubber balls and balloons, for example.
- Running Gag: If he fails in getting the bag of tricks, chances are he'll have a machine laying around his lab made solely to beat himself up for his failure. If not that, he'll substitute with whatever else is handy, such as smashing his head against a wall in "Into Outer Space" or whacking himself with a wet mackerel in "Blubberino the Whale".
- Scatterbrained Senior: While Professor's age hasnt been specifically stated, he has a somewhat elderly looking appearance that implies he's getting long in the tooth, and while he's not stupid, hes very absentminded and lacking in common sense, and acts very immature for someone of his age.
- Sore Loser: Professor does not like being denied any sort of victory, and will often throw tantrums or beat himself up for it when he loses.
- Super Not-Drowning Skills: Zigzagged:
- Take Over the World: This usually isn't one of Professor's goals, but in "Snoopascope, A Magic Bag of Tricks", he says he intends to use the Magic Bag of Tricks to rule the world.
- Team Rocket Wins: In "Redbeard the Pirate", Professor and Rock technically succeed in getting the treasure chest from Felix. The downside is that there's no treasure inside it, only Redbeard's ghost.
- Villains Act, Heroes React: Professor and Rock Bottom are always the instigator of the conflict whenever they appear, no exceptions. Felix is usually just minding his own business and gets drawn into his foes latest scheme, and is either forced to stop their schemes when he finds out about them, or is anticipating that they're concocting another scheme.
- Villain Song: In Felix the Cat Saves Christmas, he sings a song called "It's Not Easy Being Mean".
- Wicked Cultured: Subverted. In "Felix Babysits", he's fancily dressed up to pretend that he's going to the Opera house while Felix babysits Poindexter, but a slip of tongue makes it clear that he's actually going to watch a wrestling match.
Voiced by: Jack Mercer (Trans-Lux TV series), Alice Playten (The Movie), Cam Clarke (Twisted Tales), Toshiyuki Morikawa (Baby Felix, Japanese voice), Don Oriolo (Baby Felix, English Dub and Felix Saves Christmas)
The nephew of The Professor. In contrast to his eccentric, grouchy uncle, Poindexter is very benevolent and kind, even if he has an occasional bratty streak that gets the better of him. He is also gifted with a brilliant mind for a child his age, with an incredible IQ of 222 and impressive technical and scientific skills. While he does help his uncle in his schemes to steal Felix's Magic Bag of Tricks willingly, he's also a lot more chummy with Felix himself most, if not all, of the time, and he'll just as often work against his uncles schemes to help the cat. Felix tends to get hired as his babysitter on nights where Professor wants to go out on his own.
Tropes associated with Poindexter:
- Adaptational Villainy: While usually depicted as being on good terms with Felix, he is fought as a boss twice in the NES video game.
- Affectionate Nickname: Felix sometimes calls him "Poinsy".
- Big Red Button: He sometimes has one equipped on his labcoat, which is able to do a variety of tasks.
- Bratty Half-Pint: In "Felix Babysits" and "Baby Pill", he messes around with Felix just so he wont have to put to bed.
- Chaste Toons: He's basically Professor's son in all but relativity. We never get to see his parents, and Poinsy presumably lives with his uncle. However, In Felix The Cat Saves Christmas, he's shown to now be living in his own house and lab, independent of his uncle.
- Child Prodigy: He is gifted with a brilliant mind and an impressive IQ of 222, and in one episode even built his own fully-functional UFO as casually as putting together a LEGO set. But he still has a childish persona, and the Professor requires Felix to babysit him time and time again. This trait also makes him a frequent target of Master Cylinder, who wishes to exploit Pointdexter's intellect for his own ends.
- Demoted to Extra: In Twisted Tales, he is almost completely absent from the first season save for a cameo appearance in News Blues. He's bumped back up to a recurring character in season 2.
- Evil Nephew: Averted; Poindexter is the polar opposite of his uncle in personality.
- Flying Saucer: He owns at least two of them, one in the style of a flying teapot in "The Flying Saucer", and another more standard looking one in "The Atomic Rocket Fuel".
- Improbably High I.Q.: He's a little kid with an incredible 222 IQ.
- Minion with an F in Evil: He is usually very kind and benevolent, and is on very friendly terms with Felix the Cat despite his uncles animosity towards him. He even helps him when the Professor isn't around to watch.
- Morality Pet: When he's around, he tends to bring out the better side of Professor.
- Nice Guy: Even when he's doing a misdeed, he's unfailingly polite and genial, and always addresses Felix as Mr.
- Nice Hat: Pretty much always seen wearing a graduation cap.
- Only One Name: He's only referred to by one name and his last name is never given.
- Save the Villain:
- Poindexter is so good-natured, that he wants to save Master Cylinder of all people in "The Atomic Rocket Fuel", who had threatened both his and Felix's life on numerous occasions—even Felix, of all people, balks at the idea. It ends up biting Poinsy in the ass once he goes through with it.
- Averted in "The Master Cylinder's Spacegram"; Felix and Poindexter both wisely decide not to free Master Cylinder from General Clang, even though Master was as much a victim of Clang's scheme as they were.
- Satellite Character: He is rarely seen acting on his own, almost always accompanying either the Professor or Felix.
- Shrink Ray: In "Felix Babysits", Poindexter creates a potion that he uses to shrink Felix down to microscopic size so that he can stay up late to study.
- Smart People Wear Glasses: He wears glasses and is intelligent.
- Running Gag: Poindexter has a bad habit of making potions that tend to be very explosive, although he always comes out unharmed by them. In a few instances, this actually allowed him to escape the clutches of the Master Cylinder.
Voiced by: Jack Mercer (Trans-Lux TV Series), Billy West (Twisted Tales), Kōichi Nagano (Baby Felix, Japanese voice) Dave Coulier (Felix Saves Christmas)
The Professor's sidekick (at least when Poindexter isn't around or when he's with Felix) and occasionally a lackey for Master Cylinder, who happens to be a bulldog. He's a shameless crook and bully. He's not exactly a thinking fellow and he almost always takes every word the Professor says seriously.
Tropes associated with Rock Bottom:
- Ad-Break Double-Take: Lampshaded in "Felix Meets Vavoom"; after the commercial break, he basically asks Professor to do a recap of the first half of the episode for him, nothing that he forgot because of how stupid he is.
- All Men Are Perverts: In his debut episode, "Detective Thinking Hat", Felix at one point lures him into a trap using a sign promising a free peek at 16 gorgeous girls.
- Bully Bulldog: He is a bulldog and he is antagonistic.
- Card-Carrying Villain: In "Detective Thinking Hat", after Felix warns him via phone that he's about to show up to arrest him, he freely admits he's a crook."Another cop! Why do they always pick on me! Can I help it if I'm a crook? I am just a product of my genes. My chromosomes are made of jumpin' beans. My ego is in panic, I'm almost schizophrenic! I'm insecure and live beyond my means!"
- Cigar Chomper: He constantly has a cigar in his mouth.
- Classic Villain: Falls into the Wrath and Ambition parts of it, and occasionally Pride as well.
- Depending on the Writer: While he's usually a minion of the Professor, some episodes, one being his debut, depicts him as an independent villain. Some episodes depict him as being under the employment of Master Cylinder as well.
- Decomposite Character: As with Professor, the Twisted Tales incarnation of him was ordered by Don Oriolo to be retconned into a different character from Joe Oriolo's Rock Bottom, but the show was cancelled before he and Professor could make more appearances.
- Demoted to Extra: As with the Professor, he is almost entirely absent from Twisted Tales, save for "Attack of the Robot Rat", where he appears alongside the professor, but in heavily redesigned form.
- Dogs Are Dumb
- Dumb Muscle: And he's aware of it, as pointed out in "Felix Meets Vavoom".Rock Bottom: Excuse me, boss, I forgot what I'm supposed to do. I'm so stupid!
- Even Evil Has Standards: Rock might hate Felix, but he doesn't really want to see him dead. In "Stone Making Machine", when he thinks he's captured Felix in a bag (actually a statue of him) and Professor is about to turn on the machine, Rock breaks down in tears at the idea of turning Felix into stone. Professor comforts him with a pat on the back and a pep talk that it's for the better of mankind.
- Evil Is Petty: In "Felix's Prize Garden", Rock destroys Felix's garden and tries to run him down in a tractor purely out of spite for Felix laughing at his clothes getting destroyed by the pile driver, which was something Rock brought entirely on himself.
- Evil Sounds Deep: He has a very deep, gravelly voice.
- Expy: The character was loosely based on the Butch the Bully character from the 1950's Felix the Cat newspaper comics. Trans-Lux wanted more ancillary characters for the made-for-TV cartoons, so Joe Oriolo reached back to that character when thinking up Rock Bottom.
- HeelFace Revolving Door: Though not to the extent of Professor, Rock Bottom varies between being a crook that Felix has to stop, a bully who just wants to antagonize Felix, or just being a grouchy neighbor to Felix at worst.
- Jerkass: While not as evil as Master Cylinder, he's far meaner than Professor and is prone to bullying and committing unprovoked crimes, and he likes to act like an asshole towards Felix just for the heck of it.
- Kick the Dog:
- He's at his meanest in "Felix's Prize Garden". He remorselessly ruins Felix's garden by running it down with a tractor and pushmower, tries to run down the cat in his tractor, and then he laughs about doing it, glad that he scared Felix. What provoked him to do this? Felix laughing at him after Rock accidentally destroyed his own clothes with a pile driver he was using, and after Rock had just pulled a couple very mean pranks on Felix earlier. Oh, and he steals Felix's pool water and then tries to run him down again and whack him with a club when Felix steals it back.
- In "Felix The Cat Finds The Golden Bug", Rock comes across and throws a harmless baby buzzard off the mountain on orders from Professor. He even mocks it by saying that it had better learn to fly before it hits the bottom. Thankfully, Felix saves it before it hits the ground.
- Made of Iron: In "Game Warden Felix", he accidentally shoots himself in the face with a shotgun at point blank range—and only comes out dazed and with his clothes damaged.
- Meaningful Name: He's a pugnacious thug (and does a rather poor job at being one too), and not the brightest bulb on the Christmas tree either.
- Team Rocket Wins: Rock manages to score a victory over Felix, but it didn't pay off for him in the long run. In "Penelope the Elephant", a Rajah's pet elephant, Penelope, has gotten lost and he offers a 50,000,000$ bakshee reward for her return. Felix finds her and intends her safe return, but Rock Bottom kidnaps her and ties up Felix, and makes it to the Rajah's palace to claim the money reward. He is promptly given it—but it turns out 50,000,000 bakshees is only worth 10 cents in American money. He's so flabbergasted at this, that he angrily throws the meager award aside and goes into shock.
- Villainous Glutton: He is depicted this way in Felix the Cat Saves Christmas. He is easily distracted by a Christmas dinner inside a family's house and at one point Felix and Poindexter sneak past him by giving him a steak.
Voiced by: Jack Mercer (Trans-Lux TV series), Patrick Pinney (Twisted Tales), Kōichi Nagano (Japanese voice), Don Oriolo (Baby Felix, English Dub)
A cyborg that resides inside of the moon (sometimes moving to the planet Venus and Mars), where he reigns supreme as King. He was initially a pupil of the Professor until his original body was destroyed in a chemistry lab accident, leaving him a disembodied brain contained within an electro-mechanical body. He briefly served as a minion for the Professor during Felix's younger years, but he eventually left of his own accord to become the self proclaimed King of the Moon. Personality wise, he is an arrogant, nasty and cold blooded egomaniac, often kidnapping Poindexter to further his own ends and even wishing to experiment on Felix in his debut, and he even goes as far as trying to destroy the earth in one episode for the heck of it. He is such a threat that both Felix and Professor are at his mercy whenever the encounter him. And whereas Professor varies between foe and uneasy ally to Felix, Master Cylinder is almost always evil and hostile towards him. He's occasionally shown to have a mutual relationship with his former mentor Professor, but even then he tends to turn his back on Professor to further his own ends. In some episodes, he has a minion in the form of a helmeted squid alien named General Klaang.
In Felix The Cat: The Movie, The Duke of Zil built a Master Cylinder of his own to command his legions of Cylinder robots, presumably inspired by the one in Felix's own dimension (who has his own profile in the Felix Movie section).
Tropes associated with the Master Cylinder:
- Achilles' Power Cord: In his first appearance, Felix defeated him by simply unplugging him from a nearby wall socket. He presumably got a different power source in later appearances so he could move around freely, and also make sure that Felix couldn't pull that off on him again.
- Adaptational Wimp: In the NES video game, he's apparently working for the Professor again and pops up as a boss twice. He is barely as big as Felix, and has a ridiculously simplistic attack pattern and weak stamina.
- Alien Invasion: In Twisted Tales of Felix, he makes a return in The Extraterrestrial Robot, where he teams up with an unnamed alien to take over Earth.
- Art Evolution: In his first appearance, he's a very large robot, but in subsequent appearances he switched to a smaller body. In "Martin the Martian Meets Felix the Cat", he gets another redesign, giving him legs, an even smaller body, and a metallic mouth, which he handwaves as being a new, more compact body. Twisted Tales mostly uses his standard look, but with subdued changes like making his eyebrows more prominent, changing his claws into hands and giving him a little wheel to roll around on.
- Big Bad: While he doesn't appear as much as The Professor, he earns this title much more than him. Unlike the Professor, who has an on and off rivalry with Felix, Master Cylinder is always villainous towards Felix and up and to no good.
- Big Ol' Eyebrows: He is sometimes drawn with these (why he would have them is another story) but some episodes just show his eyes.
- Brain in a Jar: In his debut Master Cylinder, King of the Moon, he describes himself as a disembodied brain contained within an electro-mechanical body. Apparently, his original body was destroyed in a chemistry lab explosion.
- The Bus Came Back: He is absent from the bulk of Twisted Tales of Felix, but makes a brief return in season 2 as the villain of The Extraterrestrial Robot. He also makes a cameo appearance on a book in "Nightmare on Oak Street".
- Classic Villain: He has all the staple traits of one going for him, but he takes them further than Professor and Rock, especially in regards to Pride.
- Evil Is Hammy: He has a Laughably Evil, boisterous and arrogant personality.
- Eviler Than Thou: He is much more evil than either Professor or Rock Bottom. He's a straight up bad guy, a bully and a complete jerk with no redeeming qualities at all, who is perfectly willing to do deeds like kidnapping and enslaving an innocent child and either invading or blowing up the Earth just for the heck of it. It says a lot about his character that even Felix hates him and would gladly leave him for dead if given the chance.
- Everyone Calls Him "Barkeep": He doesn't seem to have a real name beyond his title. When he reunites with Professor in his debut episode, he tells him his name as if Master Cylinder was always his name.
- Evil Sounds Deep: Not in the Trans Lux show, where he speaks with a wheezy, Irish accent, but definitely in Twisted Tales.
- For the Evulz: Whereas Professor is usually driven by clear cut goals, namely his foolish obsession with getting Felix's magic bag and monetary gain, Master Cylinder is a bully and an egotist who is just out to cause trouble to anyone unlucky enough to cross his path or be his target. And In "Master Cylinder Captures Poindexter", he decides to send a giant meteor hurtling towards Earth to destroy it. Why, you ask? Because he can.
- Go-Karting with Bowser: In "Public Enemies One and Two", Master Cylinder shows up as a guest for Felix's surprise birthday party. It's probably his only appearance where he isn't committing evil—he unironically joins in on the fun Felix and co. are having.
- Hate Sink: He's a thoroughly unpleasant, unlikable person all around, with an uncharismatic, pompous, and extremely arrogant and sociopathic personality, and only exists so there's someone to root against as the other villains, Professor and Rock Bottom, are too comical and pitiful to be taken seriously as threats to Felix. It says a lot that in-universe, even Felix of all people has an uncharacteristic but perfectly rational hatred of him.
- Humongous Mecha: In his debut episode, he was large enough to easily grab Felix in his claws, but he quickly abandoned this form for a smaller, more compact and mobile body.
- I Lied: In Venus and the Master Cylinder, he tricks Professor into letting Pointdexter work under his wing for a year on Venus in exchange for a 1,000,000$. Once Professor drops off his nephew, the latter is quickly enslaved and Cylinder laughs at the idea of giving Professor anything, quickly tying him up to a rocket and launching him out into space.
- Jerkass: He manages to be more of one than his own mentor.
- Jerk with a Heart of Jerk: In "The Atomic Rocket Fuel", Poindexter saves him from being lost in space and even allows him to be a guest in Professor's lab. He shows his gratitude by immediately roping Poindexter into another scheme of his.
- Knight of Cerebus: Master Cylinder is a lighter example—he was introduced into the (child aimed) Trans-Lux series as this to offer something resembling a legitimate threat to Felix, something not really offered by the hapless villainy of Professor and Rock Bottom. While his victory streak is the same as Professor's and he's a Laughably Evil personality, he is not a Harmless Villain—he at least gets the edge over Felix right off the bat in most of his appearances and offers threats bigger than just the petty thievery the Professor's crimes consist of—for example, In "Master Cylinder Captures Poindexter", he comes dangerously close to destroying the Earth with a meteor he hijacked. On top of that, while Professor has an on and off rivalry with Felix, Master Cylinder is almost always hostile and antagonistic towards the cat.
- Mad Scientist: Has shades of this, considering he's built his own equipment on the moon and is able to modify his robotic body, but he's not a full blown one like Professor. He flunked chemistry class while serving as Professor's pupil (which explains how he accidentally blew up his original body in a lab), and Cylinder usually resorts to kidnapping Poindexter to do his dirty work - most prominently, proper fuel production.
- Meaningful Name: True to his name, he is a giant mechanical cylinder.
- Not Me This Time: In "Master Cylinder's Spacegram", it turns out he's not the real villain this time, having been backstabbed and chained up by General Clang.
- Off-Model: He has a visible mouth in "Public Enemies One and Two". Some episodes, like "The Exchanging Machine" also draw him with noticably smaller eyes.
- Out-of-Character Moment: His cameo in "Public Enemies One and Two" has him happily attending and celebrating Felix's birthday, which, as the rest of his profile attests, is blatantly out of character for someone as cold blooded as he is.
- Punny Name: His name is an obvious play on actual Master Cylinders. Joe Oriolo, the showrunner of the TV Felix cartoons, was a big car enthusiast and probably couldn't resist using this wordplay.
- Tin-Can Robot: He's a giant, robotic cylinder—need we say more?
- Villain of the Week: Unintentionally became this in Twisted Tales. He appeared in Season 2's The Extrateresstrial Robot (and made a cameo appearance in "Nightmare on Oak Street") and he was clearly intended to appear again, but the show was cancelled before that could happen.
- Weaksauce Weakness: In The Extraterrestrial Robot, Felix manages to send Master Cylinder packing—by threatening him with a meager can opener. He promises to return while fleeing.
- Weird Moon: The outside of the Moon he resides on looks typical, but the inside of it has a breathable atmosphere with a lush, thriving jungle. He later moved to Venus, and it has flora and fauna identical to the moon (by virtue of recycling backgrounds).
- What the Hell Is That Accent?: He has vague hints of an Irish or Russian accent, but his haughty schoolyard bully tone of speaking muddles what exact accent he has.
Voiced by: Jack Mercer (Trans-Lux TV series)
A minor recurring villain, he is an alien who serves as a lackey for Master Cylinder.
- Aliens are Bastards: He's an alien and a bad guy who willing serves Master Cylinder in his schemes, including times when he wants to kidnap Poindexter. In "Master Cylinder's Spacegram", he also backstabs Master Cylinder so he can invade the Earth all on his own.
- Aliens Speaking English: Like with Martin and the friendly martians Felix encounters, Clang is fluent in English despite being an alien.
- A Day in the Limelight: In his first appearance, where he's the main threat, and in "Master Cylinder's Spacegram", where he breifly usurps Cylinder as the main antagonist.
- The Pirates Who Don't Do Anything: Despite his title of General, he doesn't seem to have any subordinates, let alone a whole army to command, and usually seems to be Cylinder's only follower.
- The Starscream: In "Master Cylinder's Spacegram", he backstabs and chains up Master Cylinder so he can conduct his own invasion of Earth with an army of rockets.
- Teleportation: In "General Clang and the Secret Rocket Fuel", he has a portable teleporter (a small box that he can zip open) which he uses to kidnap Poindexter.
- What the Hell Is That Accent?: Has a vaguely (emphasis on vague) Russian accent, though even that might not be an accurate description.
- X-Ray Vision: In "Master Cylinder's Spacegram", he has this ability and uses it to find out Felix stowed away in a trunk with Poindexter.
Voiced by: Jack Mercer
A little Eskimo with a voice loud enough to literally knock over trees! Named after the sound he makes whenever he opens his mouth. He's mostly a neutral character who acts of his own accord, but Felix is on good terms with the little guy.
Apparently, Joe Oriolo based him off of his own son, Don Oriolo, who once got into a bad sneezing fit that was once so loud, it startled Joe enough to make him fall over in his chair!
Tropes associated with Vavoom:
- A Day in the Limelight: Vavoom Learns How To Fish has him as the central protagonist, as Felix is largely taken out of action by trying to seal a leaking dam as Vavoom tries—and fails—to warn the nearby town about it.
- Big Eater: In his debut, Vavoom eats diamonds like rock candy!
- The Cameo: He gets a cameo appearance on the title screen of the NES video game (he pokes his head out from behind the E in Felix's name) but he doesn't appear in the gameplay itself.
- Cute, but Cacophonic: Moreso in his early appearances, when his underbite wasn't so obvious.
- Improbable Weapon User: His VOICE is his weapon!
- Make Me Wanna Shout: His voice is strong enough to shatter boulders, create avalanches and drill tunnels through solid rock. In Vavoom Learns How To Fish, a man tries to trap Vavoom under a garbage can and sit on it, but Vavoom uses his voice to blow him away so hard, that according to bystanders with telescopes, hes been sent flying into orbit.
- Pokémon Speak: Vavoom is only capable of saying his name in a loud, booming voice. This unwittingly creates a conflict in Vavoom Learns How to Fish, as he's unable to warn the nearby town about the leaking dam, since his voice just sends them flying and makes them think he's a nuisance.
- Shout-Out: His name is borrowed from a classic Jackie Gleason phrase, "Va-va-va-voom!"
- Volumetric Mouth: The Ur-Example.
Voiced by: Jack Mercer (Trans-Lux TV Series)
Martin the Martian (later renamed Marty) is a minor recurring character in the Joe Oriolo Felix cartoons. He is a friendly alien who likes travelling by using his 4th Dimensional Space Capsule (a transparent cube) and tends to help Felix whenever he's in the clutches of Master Cylinder. He is also on good terms with Poindexter, who had already met Martin well before Felix did.
- Adaptational Name Change: His appearances in Baby Felix & Friends changed his named to Marty, likely to keep people from confusing him with that other cartoon martian.
- Alliterative Name: Martin the Martian.
- Aliens Speaking English: Despite being a martian, he's fluent in English.
- Innocent Aliens: He's a very nice guy and hit it off with Felix as soon as he met him. He's always more than willing to lend Felix or Poindexter a hand when the Master Cylinder gives them trouble in space.
Voiced by: Jack Mercer
A lone martian that Felix encounters in one episode, having crash-landed his flying saucer outside of the cat's house. Should not be confused with Martin the Martian.
- Aliens are Bastards: He tries to eat Felix alive after he invited him into his house.
- Aliens Speaking English: Averted; unlike with Marvin and the two friendly martians Felix encounters, this martian is only capable of speaking noises that are completely unintelligible to Felix.
- Big Eater: He devours a whole plate of bread, a steak, hambone and a chicken leg in seconds. He eats Felix's rifle and radio, and then tries to eat Felix himself.
- Flying Saucer: He owns a giant flying saucer that has a sleek, gray appearance.
- Hoist by His Own Petard: His appetite ends up being his own undoing when he eats Felix's radio, which is what ends up defeating the martian.
- Humongous Mecha: He has a robot inside of his spaceship, and it's absolutely massive. It's even bigger than the Abominable Snowman Felix once met! He doesn't use it to fight Felix, though.
- I'm a Humanitarian: The martian tries to eat Felix after eating a bunch of food that was given to him.
- Know When to Fold 'Em: After getting beat up enough times by the boxing broadcast on Felix's radio, the alien gives up, hands Felix his radio back, and flees the planet.
- Lone Wolf Boss: He's not affiliated with any of the other bad guys, he's just a lone martian who ends up tormenting Felix for one episode.
- No Name Given: He isn't given a name, and Felix just calls him a Martian.
- Teleportation: The Martian is able to teleport, and does this to get into Felix's house instead of using the open door, and reappear behind Felix when he gets angry.
- The Unintelligible: The Martian speaks in deep-throated noises that don't form any comprehensible words.
- Villain of the Week: He's a oneshot villain who only appears in "The Martian Rescue".
Voiced by: Jack Mercer
Two oneshot characters who both essentially serve the same role. They're both friendly martians who Felix encounters while dealing with the Master Cylinder and General Clang, disguising themselves as ordinary objects to help Felix against the villains.
- Aliens Speaking English: Like with Marvin, they have no problem understanding or speaking with Felix.
- Innocent Aliens: Both of them are good guys and help Felix out against Master Cylinder and Clang.
- La Résistance: Implied. They both say they're on Felix's side to help fight Cylinder and Clang, and use disguises to make it easier to do so.
- No Name Given: Neither of the martians are given names.
- Shapeshifter: They apparently have the ability to disguise themselves as mundane objects, but we don't get to see their true forms.
Voiced by: Jack Mercer
A oneshot villain who appeared in Felix Babysits. He is a large amoeba and the self proclaimed "King of the Blobs". He tries to eat Felix after he's been shrunken down to microscopic size.
- The Bus Came Back: Despite being a minor villain, he returned as a boss fight for the NES tie-in game.
- Cigar Chomper: Somewhat inexplicably, he has a cigar in his mouth throughout the entirety of his brief appearance.
- Clipped-Wing Angel: Felix manages to defeat him by dousing him in the same shrinking formula Poindexter used on Felix in the first place, returning Gulpo back to his microscopic size.
- I'm a Humanitarian: He tries to eat Felix alive when he first encounters him, but Felix socks him in the stomach and runs away.
- Lone Wolf Boss: In his debut, he's not affiliated with Professor or Master Cylinder, he's just a ravenous amoeba that unwittingly becomes a threat to Felix and Poindexter. He comes back as a boss fight in the video game, but due to the games wafer-thin plot, it's not clear if he's affiliated with Professor now or if he's just giving Felix trouble again for the heck of it.
- Mega-Microbes: He's an amoeba that was unwittingly made giant by one of Poindexter's formulas.
- One-Winged Angel: Poindexter unwittingly makes him big enough to barely fit in Professor's lab by accidentally sprinkling him with the same growth formula that he used to restore Felix back to normal.
- Villain of the Week: He only appeared in one episode of the series (and made a brief return as a boss in the NES video game) and vanished after that.
A little mouse who invades Felix's home and steals his food.
- Breaking the Fourth Wall: The mouse stops the cartoon from doing an Iris Out just so the audience can get one little glimpse of him at the end.
- The Determinator: He goes out of his way to thwart every single attempt Felix makes to trap him or drive him out of the house. Of course, he's just doing it to feed his kids.
- Easily Forgiven: Once Felix finds out why he's stealing all of his food (to feed his children), Felix eases up on him and allows him and his family to stay, even sharing his food with them and making them feel at home.
- Good Parents: It's shown near the end that he cares for his kids and goes out of his way to make sure they're well fed and cared for.
- Half-Dressed Cartoon Animal: He wears pants, but no shoes or shirt.
- Not Evil, Just Misunderstood: He spends the whole episode stealing all of Felix's food and thwarting every attempt the cat makes to stop him or drive him out of the house, but it turns out he's just doing it to feed his children.
- No Name Given: He isn't given a name—Felix just refers to him as a mouse.
- The Voiceless: He is given no dialogue at all.
- The Unseen: He isn't seen until just near the end of the cartoon.
Big Brownie is a giant brown bear who lives out in the wildnerness. He briefly scares Felix and Bart, the owner of a ranch, and Bart tries to do away with him. It quickly becomes apparent that Brownie ultimately means well. He also raises a little cub, who Poindexter nicknames Little Brownie.
- Bears Are Bad News: Subverted. Big Brownie may cause some property damage in his episode, but he isn't evil, just clumsy.
- No-Sell: Despite Felix and Bart attempting to use a hive of wild bees to drive out Brownie, the bear effortlessly defeats the bees once they're released and fly towards him—they fall limp to the ground as soon as they collide into him. Doubles as Truth in Television: bears have very tough hides in real life, so bee swarms usually don't bother them.
- The Voiceless: Neither of them are given any dialogue.
Voiced by: Jack Mercer
A ranch owner who Felix and Poindexter briefly hang out with, who wants to get rid of Big Brownie the bear, understandably out of fear of him and out of anger for him unwittingly terrorizing his ranch.
- Anti-Villain: While he crosses the line by trying to kill both Big and Little Brownie by using a rigged trap, he has an understandable reason for why he wants to get rid of the bears, with his flaw being that he simply won't listen to reason when Poindexter tries to explain that Brownie isn't really evil.
- Eyes Always Shut: His eyes are drawn like this.
- Hoist by His Own Petard: His attempt to bait Big Brownie with his cub backfires when the boulder Little Brownie was tied too falls off the cliff and lands directly on his house below, smashing it to pieces.
- Villain Has a Point: While he ultimately turns out to be in the wrong for trying to kill the bears, he had a perfectly rational reason to try and do so. Bears are very dangerous animals, and Big Brownie had last been seen smashing apart trees and part of Bart's house earlier. Even after Poindexter turns out to be right about the bears being good (and correctly chalking up Big Brownie's little rampage to clumsiness), there's no way Bart was going to give a child the benefit of the doubt in favor of wild animals that could potentially jeopardize his safety further.
- Villain of the Week: While not really evil, he's technically the episodes antagonist and makes his sole appearance in it.
- Well-Intentioned Extremist: He goes out of his way to try and kill Brownie because he assumes the bear is nothing but trouble, despite Poindexter trying to reason with him. He even rigs a booby trap with Brownie's cub so that both of them can be killed from a high fall.
Voiced by: Jack Mercer
A friendly little leprechaun and the king of the leprechauns. He seeks out Felix's help whenever Professor and Rock Bottom try to get his and his peoples pot of gold.
- Everyone Calls Him "Barkeep": In this first two appearances, he's not given a real name, he's just referred to as the Chief Leprechaun by everyone, even Felix. "The Capturing of the Leprechaun King" reveals his name to be Barney, though.
- Modest Royalty: He's conservatively dressed and keeps his crown hidden under his hat.
- Nice Guy: He's easygoing and affable in personality.
- Royals Who Actually Do Something: He actively helps Felix thwart Professor and Rock when they threaten his people.
A relative of Felix, presumably his grandfather, who can been seen in a portrait in a couple episodes.
- Funny Background Event: His portrait is really meant to be a throwaway gag put into the background for the heck of it. His beard is so long, that it even hangs out of his portrait!
- The Ghost: He's only seen as a small portrait in the background and never in person. Presumably he's deceased, though it's hard to say for sure.
- No Name Given: He's just given the vague title of "Pa" by the portrait.
- Uncanny Family Resemblance: He looks identical to Felix except for his long, scraggly white beard.
A oneshot foe from the NES tie-in game. He serves as the boss fight for World 5.
- Adapted Out: He's not present in the Game Boy version of the game due to World 5 being cut out of it.
- Bottomless Magazines: He wields a six shooter that shoots cannonballs, but it doesn't seem to have any limits for ammo.
- Canon Foreigner: He's a oneshot foe who was created exclusively for a boss fight in the NES game—he doesn't appear in the show or any other Felix the Cat media.
- Evil Doppelgänger: He's a carbon copy of Felix in appearance, with only a hat and gun to distinguish himself from the real deal.
- Flat Character: He's given no personality or role beyond "Evil clone of Felix".
- Giant Space Flea from Nowhere: He comes out of nowhere in the video game, and is gone just as soon as you meet him. He's given no name, characterization or explanation for where he came from, and it's not even made clear if he's actually affiliated with Professor.
- No Name Given: He's not named in-game, and the manual doesn't even mention him.
- Punch-Packing Pistol: His pistol shoots cannonballs out of it!
- Visual Pun: He's a clone of Felix, thus making him a copycat.
- The Voiceless: He's given no dialogue in-game.
Voiced by: Tom Bosley
The jolly old elf who delivers toys to kids all over the world. Felix is forced to help him out in one adventure when Professor tries to sabotage his annual present deliveries with a weather control machine.
- Nice Guy: True to his character, Santa is very genial and kindhearted. He's so forgiving, that he even gives Professor a present while he's in prison, in spite of the fact that Professor had tried to sabotage his own holiday.
- Santa Claus: You were expecting, maybe, Peter Pan?
- Public Domain Character