As the Animaniacs theme song states, "Wakko packs away the snacks". While his siblings Yakko and Dot normally go after the sweet stuff, Wakko's the type to gobble up everything in the refrigerator, and then eats the fridge itself! Dot rarely goes into Big Eater mode. One example could be "Roll Over, Beethoven". Even though we only got to see her eat one Vienna sausage, corn on the cob and something else we don't know (probably soup?), we could tell she has eaten a lot by hearing her belches.
Buster from the Arthur TV series. He will eat virtually anything, even tomato cookies made by Grandma Thora. He even keeps a rotten food collection!
A play in "The Ember Island Players" that covers the events of the main characters' journey makes Sokka out to be a Big Eater. Though despite the fact that the play exaggerated everyone's traits, Sokka does seem to like food more than the other main characters, as seen when he couldn't go a moment without thinking about food in the episode "The Southern Air Temple".
Bolin in Sequel SeriesThe Legend of Korra who has a trim if solid build seems to be the likeliest central character to be seen randomly munching on something. This is justified, as Bolin and his brother, Mako, became street urchins as children after their parents were murdered by a Fire bender, so whatever they could eat, they take it. Being a pro-bender also allows Bolin to burn off those extra calories and keep himself in tip-top shape. In "The Revelation," he's revealed to have taken out a significant "personal loan for groceries" from the gym owner. In "The Spirit of Competition," he gorges himself silly on noodlesafter getting his heart broken. And in "Rebel Spirit," he attempts to stick an entire game hen in his mouth:
Bolin: What? Oh, it's so good!
Both Beavis and Butt-Head can actually pig out whenever they want to. In one of the revival episodes, they tried to gain weight so they can get famous like Morgan Spurlock of Super Size Me. Of course, being how the two are, they gained weight without knowing the documentary's actual purpose.
This is basically the one joke of Billy Boy. Tex Avery still manages to get a lot of mileage out of it.
The title character Chew Chew from the Famous Studios cartoon Chew Chew Baby, a pygmy cannibal who over the course of the cartoon devours six people, two of them in a single bite. The cartoon is cited as a source of Nightmare Fuel for some people.
Bink from the Chip 'n Dale Rescue Rangers episode "Adventures in Squirrelsitting". She is a toddler, yet she sucks an apple that's larger than herself empty within mere seconds, including the core, and she's still hungry.
Philly Phil of Class of 3000 eats far more than his skinny frame would suggest, such as downing half a pizza (his friends don't flinch, so he must do this quite often), and has even bordered on Extreme Omnivore.
Kam:(after Phil has eaten his 101st donut... with a candle on it!) Don't you chew? Phil: Depends.
Odd Della Robia in Code Lyoko frequently cleans the lunch trays of his closest friends, despite maintaining a svelte frame.
The nurse believes he might have a high metabolism that could explain it.
Amusingly, in the scene where the high metabolism is discussed, the nurse proceeds it by asking if Odd eats enough, prompting Jeremie to quip "By enough, do you mean 'more than an elephant'?" which in turn makes the other boy in the room snicker.
Bonus points for the elephant sound effect during that scene.
Probably Eustace from Courage the Cowardly Dog. He constantly demands that Muriel cook for him, and his hunger saved Courage and Muriel from Katz once.
The Crumpets has Cordless, the obese adoptive cousin of the Crumpet kids who likes to eat big quantities of food like hamburgers and sushi.
In Dan Vs., Chris has this bad, to the point that he hides food in Dan's apartment. The first episode of season 3 implies that it's at least partially due to over-repressing his anger.
In one episode, we are informed that Chris once ate a pair of slippers with shampoo as a dip in his sleep, making him an Extreme Omnivore as well.
Tucker in Danny Phantom, especially if it is meat. Danny's Opposite-Sex Clone, Danielle, could count, too, given how much food she eats in "Kindred Spirits".
Ed from Ed, Edd n Eddy will eat pretty much anything, up to and including his mattress. It's even worse when he starts sleep walking. In the episode "If It Smells Like An Ed" while eating jujubes, Ed eats a log.
Rolf the Funny Foreigner can also put away food, especially meat. In All Eds Are Off, he bets with the other boys (The Eds, Jonny, and Kevin) off eating meat for the day and he looks like a skeleton. He didn't even last until lunch. Rolf also ate a ton of baloney since he thought the other kids were going to steal it from him (He doesn't understand the idiom "baloney" is another word for "nonsense").
Nazz the cute, somewhat dim Girl Next Door can be this too, as she eats like a pig and devours all kinds of food. Everytime she sees food she eats and doesn't stop, as Nazz takes all the potato chips away from Sarah and Jimmy and steals Kevin's peanut sandwich and eats it whole.
Chester, Mark, and Grippulon in The Fairly Oddparents. Chester especially when he became Matter Muncher Lad (an Expy of Matter-Eater Lad).
If a real dog ate as much as Winston from Feast, they would probably end up seriously obese, yet the little Boston Terrier never seems to have any weight problems. Winston's owner appears to be a big eater of the "Fat" variety.
Mac from Foster's Home for Imaginary Friends almost always averts this trope, until he's given sugar. Once he has the slightest bit of sugar, he'll be eating anything he finds that's sweet. Where it goes, on the other hand, is never found out, though he does burn a lot of energy running around like a maniac on his sugar high (and he's a bit more Puni Plush than the other human characters).
Similarly so, Frankie and this trope seldom meet, but in "Cookie Dough" it becomes clear that she cannot hold herself together when Madame Foster bakes cookies. Once Bloo starts making them for profit, she asks for twenty dozen cookies before asking if there was a limit on how many she could buy at once, and every single scene with her after that showed her stuffing her face. The end credits show her lying on her bed with empty boxes and empty milk jugs all around her and her body severely bloated — and she just keeps going.
Futurama's Nibbler, who converts the calories into super-dense spaceship fuel. And the rest of the Niblonians, for that matter. The Feast of a Thousand Hams, anyone?
One of Harold's defining characteristics. He's almost always eating something when he's onscreen, and in one episode he ends up gaining a massive amount of weight in a short period of time because of it. Ironically, in "Eating Contest", he's the first one eliminated, after eating only two tacos. He might be able to eat a lot, but eating quickly makes him sick.
Seymour, as revealed in "Eating Contest". Arnold does manage to beat him, but only by technicality. The final dish is a gigantic cake that Seymour eats half of before he hits his breaking point and collapses. According to the rules, Arnold now only needs to take one bite of the cake to win. He did have to keep pace with Seymour to get that far, though.
Helga is implied to be this due to her Jabba Table Manners and large orders at restaurants. One waiter even pointed out that she has such a big appetite for such a little girl.
In Hi Hi Puffy AmiYumi, Yumi is able to scarf down massive amounts of food, but only when faced with something that makes her so bored she becomes desperate for a distraction, such as a baseball game or a facsimile of one.
GIR from Invader Zim, which is made all the odder by the fact that he's a Robot Buddy. The only time he ever gets fat from it is in one episode where he started mugging kids for their Halloween candy and ended up fattening up to an extreme size.
In Iron Man: Armored Adventures, Pepper Potts displays the first time she goes on a date with Happy. Although it's never mentioned again, she implies it's normal, fitting her portrayal as The Lad-ette. A doubtlessly related side-effect is her tremendous burping ability that she claims she has — she can apparently recite the alphabet from A to Z and name all 50 American states in the same belch.
An episode of Jacob Two-Two featured a team of police officers attempting to track down what they thought were "grocery store bandits". After discovering the eponymous protagonist and fellow grade-school friend outside a grocery store at night, the skinnier officer comments that "It's the little ones you have to look out for" right before downing half a box of donuts.
Like his comics counterpart, The Flash from Justice League eats big to fuel his incredible metabolism, as does Kid Flash of Teen Titans. The adult Flash actually complains about this in "Hearts and Minds" when he has to eat an (judging by his and Kilowog's expressions) alien vegetable that tastes terrible because someone with his metabolism can't be picky.
Kaeloo: Quack Quack, when it comes to yogurt. One episode had him eat 712 pots of it.
Stumpy and Mr. Cat as well, as they have been seen to eat enough to generate piles and piles of empty chip packets and soda cans.
The titular Kenny the Shark has eating habits that threaten the financial stability of his owner's parents. When he eats sushi for the first time, he gets too hooked on it that he dresses like a human and eats everything in the restaurant. His eating gets too out of control that he and Kat have to find a job to pay for his bills. They settle on a hockey mascot job that doesn't pay money but allows Kenny all the hot dogs he wants. He gets fired and has animal control take him away, not because he endangers the audience and the rival mascot, but because he ate all of the hot dogs.
The Hollow: Famine one Four Horseman of the Apocalypse is this. Lampshaded by Plague when they fight over the last cinnamon scone.
The three protagonists from Mega Babies especially Buck.
Deconstructed in Metalocalypse. Before Dethklok became a thing, all of its members were pretty lean-bodied, especially Murderface, who was Lean and Mean, and Nathan who was a Hunk from playing high school football. After they became globally famous, years of indulgence, hedonism, and lack of self-control caused them to gain quite a bit of weight to varying degrees, with Murderface being the worst of them, though Nathan is still attractive enough to become a Big Beautiful Man. The only one not affected is Toki, who has an extremely muscular physique due to his Abusive Parents constantly working him like a slave in his childhood despite the large amounts of candy he consumes until he gets diabetes after he ignores Nathan's warnings. This trope becomes a plot point in "Dethfashion", where a depraved German fashion designer points out the dishonesty in depicting themselves as muscular and handsome to promote their new clothes brand when they can't even fit into their own clothes (except for Toki, much to everyone's envy).
The eponymous character of Mr. Bogus. In fact, the opening credits even showed him devouring two out of three entire scoops of ice cream (chocolate, vanilla, and strawberry), missing the third scoop in the process.
His younger cousin Brattus will also take on this trait at times, to the same extent as that of Bogus himself.
Pinkie Pie can put away the sweets when she wants to (an entire cake in less than three seconds!). In "Swarm of the Century", she eats a cake larger than her head in one bite. And in "MMMystery on the Friendship Express", she consumes a massive cake several times larger than herself in one gigantic gulp, after diving down on top of it. Becomes a plot-point in "Spice Up Your Life" where she finds the financially-suffering Tasty Treat due to disliking the bland, small-portioned foods at the other restaurants in Canterlot.
Also seen in Snails, a young unicorn colt whose head is bigger than his body. One bite and most of a chocolate cake is history.
Applejack also can certainly pack away the chow. Justified due to all the work she does around the farm.
Soarin', of the Wonderbolts, literally eats like a horse.
Spitfire: Always hungry after a show, eh, Soarin'?
In "Ponyville Confidential", Princess Celestia is caught on camera eating a huge cake with her hooves.
When Twilight Sparkle first meets Applejack, she eats enough of the family's cooking to give herself a Balloon Belly. Later on, in "Twilight Time", she gorges herself on at least three hay burgers and a pack of onion horseshoes, Jabba Table Manners included.
Sometimes used with Ferb from Phineas and Ferb. It's not so much that he eats a lot, but if he doesn't eat, he can get a little crazy.
A big appetite runs in the (Fletcher) family: Ferb's dad usually has an arsenal of food in front of the TV, and in "My Fair Goalie" he was the most enthusiastic when he engaged in an eating competition with his brother.
Doofenshmirtz once invented an inator which gave you a bottomless appetite for a few minutes, but did so by speeding up your metabolism so much you were burning through the food as fast as you ate it without putting on any weight.
Jet is this. It seems that every few episodes, he develops a new food interest, whether it be pie or sushi. He even listed eating as one of his favorite things in "Treehouse Observatory". Despite this, he still keeps a skinny stature.
Sean is this to a smaller extent. In "Sean's Year in Space", he tries to stay in the treehouse for a year but comes down when he smells pot roast. Also, it is revealed in "Whole Lotta Shakin'" that he stress-eats, and in "Project Pluto", he said that the Propulsions usually have snacks when the kids go to ask Carrot a question about Pluto, which earned him a funny look from Sydney.
Sunspot can also be this too. Sunspot eats all of Sean's peanut butter sandwiches in one episode, and scarfed down an entire pizza pie in another. He even ate an entire sub sandwich in Mindy in Space.
Rigby from Regular Show once ate so much junk food that his body quit on him.
This is lampshaded in Scooby-Doo and the Witch's Ghost, when both Shaggy and Scooby eat a ton of food and put on a lot of weight... but they later drop the weight after running away from the Hex Girls whom they think are witches.
In Scooby-Doo and the Monster of Mexico, it is stated that Shaggy does have a high metabolism.
In an episode of Scooby-Doo! Mystery Incorporated, Daphne of all people manages to out-eat Shaggy and Scooby. Earlier, she had been waiting over two hours at a packed restaurant for a table to open up, and the moment one finally did, the gang dragged her away to the mystery of the week, so by the end of the episode, she was just that hungry.
Some versions actually make Shaggy vegetarian - which makes sense - since in order to maintain a healthy body weight, vegetarians have to eat a lot more food.
We've seen Cyborg and Terra eat monstrous amounts of food, though in Terra's case it was implied she hadn't had a decent meal for quite some time. Cyborg, on the other hand, almost put a sushi restaurant in Japan out of business because, like the Homer Simpson example, he took advantage of the all you can eat offer and was eating too much.
Kid Flash passes a quarter of his debut episode eating food stole to his captors. When he broke out and devastated their headquarter he also raided the kitchen. It's made clear he needs it to keep his speed: Madame Rouge manages to defeat and almost capture him by attacking continuously until he tires.
Mammoth of the Hive Five likes to eat too, in the same episode insisting on personally handling the job involving the taco stand. (What sets him apart from a Villainous Glutton is, he isn't obsessed with food.)
Che the dog from The Goode Family will devour any smaller animal that comes near him because he refuses to eat the vegetarian dog food that his owners feed him, a great example of this is in the episode "Goodes Gone Wild" in which a swarm of squirrels infest the school and Gerald brings Che along because he doesn't want him to fight with Gutterball the marsupial he devours one that gets within reach of him and upon learning that the school is covered with them he licks his lips with delight and breaks his chain, at the end of the episode the swarm is gone and Che is lying against a tree with a huge swollen belly.
Buzzbee on The Hive can bee this at times, and occasionally it gets him in trouble. He does look a bit roly-poly, but only beecause that's how the characters are drawn; he doesn't really look any different from any of the other children in terms of size.
In Hanna-Barbera's version of The Little Rascals, Porky is almost always shown eating a sandwich or some such thing. In one of the 30-second cartoons, Darla asked Buckwheat how many meals Porky eats in a day. Buckwheat said just one—from the time Porky rises in the morning until he goes to bed at night.
On The Real Ghostbusters, the team keeps a ghost named Slimer at their headquarters (the same one they encountered at the hotel in the movie, apparently) who has an unlimited appetite, and can eat anything that edible. He even gladly gobbles up food that most humans find unpleasant, like hospital food and spoiled food. (He once ate the contents of a lunchbox that Venkman had lost when he was ten years old.) Of course, the team tends to encounter other ghosts with appetites like this, from time to time.
Mindy, a one-shot character from The Simpsons, was almost as fond of junk food as Homer was. How she maintained her sexy figure was a mystery.
Greedy Smurf and Peewit of The Smurfs. Timber Smurf can eat just as much as Greedy, seeing as he's a lumberjack.
Nibbles/Tuffy has this as his main trait in his early appearances. Often he swallows items whole, briefly taking their shape. His first apparition lampshades it immediately: "PS: He is ALWAYS hungry." In "The Little Orphan", Nibbles de-fleshes an entire turkey.
Both Tom and Jerry themselves are big eaters, though arguably still not as big as Nibbles.
The Insecticons of The Transformers can and will eat anything, from a field of grain to the shield plating on a military base. They become especially dangerous when allowed to feast unchecked since the energy they gain allows them to generate a near endless supply of mindless clones that are just as hungry as they are.
Jimmy and Jerry Gourd of VeggieTales. In their introductory episode, they eat an entire asteroid. (It was made of popcorn, but still, that's a lot of popcorn.)
Woody Woodpecker is another prodigious eater who can chow down great quantities of food without putting on weight.
Wally West/Kid Flash in Young Justice, like his Teen Titans counterpart above, needs to eat a lot because of his extremely high metabolism. His costume has a snack compartment so that he can refuel on missions.
Wander from Wander over Yonder can put away a lot. He's eaten the Galaxy's Biggest Hoagie (THE WHOLE THING) enough pie and pancakes in one sitting that he looked pregnant by the time he was finished, and don't challenge him to a hot dog eating contest. You'll lose.
In one episode of Seabert the Seal, the main characters spy on some of the villains eating during a sea voyage. Said villains are a Big, Thin, Short Trio. The thin guy is the Big Eater, as opposed to the big fat guy and the equally plump short leader. He eats his entire plate of spaghetti, then the fat guy's, and then his boss'. In one massive bite apiece. Dude was huuuuuungry!
The Misfits in Jem have rather healthy appetites. More than one episode has them chowing down sums of food together. Stormer asks for a hefty sounding milkshake in "The Bands Break Up".
Jake the Dog from Adventure Time. He regularly eats giant sandwiches, multiple gallons of ice cream, and many other copious dishes with room for more.
The Amazing World of Gumball: Richard Waterson lives this trope. He once was kicked out of an "all you can eat" restaurant and was upset that he didn't get to have all he can eat. Unlike Cyborg and Homer, the reason was much more sound. He ate a chair.
American Dad! According to Stan, Roger eats all the family's food.
Oswald Chesterfield The Penguin Cobblepot of the Western Animation/Batman franchise is rather obese due to his greedy appetite, or at least chubby, depending on the artist. While he usually eats raw fish like an actual penguin (sometimes even swallowing them WHOLE, as seen in Birds of a Feather and Assault on Arkham), he chows down on pretty much any food. In Call of the Cobblepot, he devoured all of Alfreds shrimp puffs and demanded more. Whether or not he eats poultry is up for debate. In an issue of Lil Gotham, he cries when served turkey in prison, yet one book mentions that he loves chicken nuggets. If he does in fact eat poultry, its pretty ironic, considering his nickname is The Penguin, he is obsessed with birds, and is an ornithologist.
Gina Lash of Angela Anaconda is a big fan of food, to the extent she once started a protest about a flavor of her favorite gelatin ("Jiggly Fruits") having its recipe changed, and as a result of her constant eating is quite pudgy, particularly compared to the stick-thin Gordy Reinhart or, indeed, any of the other kids she hangs out with. Despite being Jewish, she loves bacon.
In Archer. Pam Poovey is the Butt-Monkey for jokes about her eating habits and consequent plus-woman size. her weight balloons up and down through the series, but she is never without a snack.
Ben 10: The entire Gourmand alien species is this, as well as Extreme Omnivores (almost — the only thing they can't stomach is normal human food). Anything they eat becomes fuel for their Breath Weapon (read: belch weapon), and it is for this reason that Ben named his Gourmand form "Upchuck". Their protocol for dealing with an alien invasion is to eat their entire planet and use it as fuel to belch their way through space until they find a new one to inhabit.
Grumpy Bear of the Care Bears certainly enjoys his food in any version he shows up in. He isn't necessarily any bigger than the other bears, but walking cuddly bears aren't skinny.
Monterey Jack can (and loves to) eat incredible amounts of cheese.
Zipper falls into this category, too. There is at least one scene in which he tosses an entire apple core almost twice his size down the hatch.
Chowder is possibly the biggest eater ever conceived, to the point where it's his defining character trait. On several occasions, he's doubled as a Bag of Holding, able to eat large objects — up to and including an entire fair booth — and spit 'em out later.
Codename: Kids Next Door: Numbuh Two not only eats a lot, he's also not a picky eater. Comes in really handy since one of the villains is Gramma Stuffum, a crazy lady obsessed with force-feeding children healthy (read: disgusting) food, and in command of legions of sentient meals.
The Flintstones: Fred Flintstone is known to polish off Bronto-Burgers with little effort.
Barney was shown to be capable of this in "The House Guest", much to Fred's chagrin.
Futurama's Amy Wong is Formerly Fat, and only manages to stay thin by ignoring her Big Eater impulses. During a "Freaky Friday" Flip episode, she ended up in Leela's body and took the opportunity to eat constantly, since it wasn't her own body that would get fat. By the end of the episode, Leela's body is enormous, although once Amy saw Fry and Leela making out while in the Professor's and Zoidberg's bodies, she suddenly found that she had lost her appetite.
On Garfield and Friends, besides Garfield himself, Jon, in one episode receives a visit from his Uncle Ed, who proceeds to eat him out of house and home. Finally, Garfield, who can't even get a single bite in edgewise, decides to call Jon's Aunt Edna to take Ed back home and put him back on the diet he was supposed to be on.
Fizz from Get Ed orders herself three burgers, a basket of fries, a basket of onion rings, and a basket of pickles... and slaps Loogie's hand away when he attempts to take a pickle. Apparently, she intends to eat all of this by herself (her teammates don't even blink, so she must do it pretty regularly). However, she's got a little bit of pudge around her midsection, especially in comparison to her trim teammates.
On Goof Troop, Pete is shown to be this; his eating habits are the focus of three episodes and we often get to see him scarfing down large amounts of food quickly. There was a joke in one of said episodes where he ate six powerbars in one sitting (that were supposed to be two days' worth), and in another he ate a gigantic breakfast and was then patted down for extra food he was hiding in his clothes—which turned into The Long List. His son, PJ, is also said to be this on several occasions, by himself and others, though it is rarely actually shown.
Soos from Gravity Falls tends to stuff his face when he's not helping the kids or doing work at the Mystery Shack.
Square Bear of The Hair Bear Bunch. His appetite is put to the test after zookeeper Peevly puts the bears on a harsh diet in "The Diet Caper."
Harold Berman on Hey Arnold! He can eat about a dozen "Mr. Fudgie" Ice Cream bars in one sitting and once managed to gain tons of weight by overeating on a cruise that was ironically meant to slim him down.
Froggo from Histeria! is not severely overweight but he is a little pudgy.
Goomo on Jelly Jamm is seen eating quite a bit. In one episode he devoured the King's sandwich in one bite. Though not obese, he is chubbier than the other kids.
Bobby Hill once ate a 72-ounce steak in 37 minutes. Granted, he was motivated mostly by spite (his vegetarian ex-girlfriend was present), and when he got home he puked his guts out. When Cotton Hill took over the military academy where Bobby was attending a summer camp, he punished Bobby by giving him a huge pile of leftover food to eat. Bobby dug in and went right on eating until Cotton got fed up and took the food away.
Bill Dauterive enters a hotdog-eating contest because he's a fast eater, and then near Dale, the skinniest of the group, is sick of all the praise Bill gets for it and while mocking him manages to beat Bill in an eating practice round. It's worth noting that Bill discovered he could be a competitive eater by eating a whole platter of hot dogs at a friendly barbeque in about three minutes without even trying. His neighbors, watching, reacted with disgust than he typical cartoonish amusement usually seen with this trope (aside from Bobby). This trope was deconstructed in "Dia-Bill-ic Shock" when Bill's eating habits caused him to develop diabetes.
Tubby from The Little Lulu Show would also qualify for this trope.
Coop from Megas XLR. His enormous appetite is matched only by his enormous size. It was claimed in one episode that Coop doesn't get full, he just gets "less hungry". Another showed that he was the undefeated champion of the annual "Lord of the Large Pants" Eating Contest several years running.
Crunch in Mighty Orbots was specifically designed to be this. Namely, after from his destructive value, his primary function to convert anything he eats as energy and enable it to be a power source for the Orbots' united form.
Baby Piggy from Muppet Babies (1984), being well, a pig and all. One time, when the gang wanted some cupcakes but they were all gone, Piggy demanded to know what happened to the rest of the cupcake with Nanny answered promptly to her, "You ate the last three."...much to Piggy blushing.
Implied with one of the background ponies in Cheerilee's class. Truffle Shuffle, the grey overweight colt, has a knife and fork as his cutie mark.
Spike the dragon is chubby for a dragon his size and can chomp down a bowlful of gemstones in one gulp.
Bon Bon in My Little Pony Tales loves baking as much as she enjoys eating. In the opening sequence, she eats a cookie as she is waking up. In "Birds of a Feather" she and her friends take a week's supply of food with them, they open the bag only to discover that she had just eaten it all.
Satan in Not Without My Handbag. He's usually thin, but this trait only appears after he possesses the handbag, which is wide. He eats a mouse and then raids the fridge, and is eventually defeated by not being able to resist eating every cake from a bakery.
Helga Phugly from The Oblongs is severely overweight and has been known to eat dog food. Her parents are equally obese and possibly cannibals.
Rico in The Penguins of Madagascar is an Extreme Omnivore who can regurgitate anything needed for a mission, but his gluttony extends to him repeatedly eating rotting fish, eating a plate of raw fish while the others eat prepared sushi, firing himself out of a torpedo tube for herring in "Herring Impaired", once accidentally eating Kowalski because he looked like candy at the time, and walking through a field of mousetraps to win a fish in "Can't Touch This", as just a few examples.
Skipper:(regarding a fish) This magnificent catch goes to the man who has the wits, the ingenuity, and cunning-
(mousetraps snap repeatedly and Rico, now covered in mousetraps, just walks up to Skipper and takes the fish, licking it)
When Kenny is brought Back from the Dead as a zombie in "Pinkeye", Cartman steals his school lunch and eats it along with his since he's no longer being responsive.
In "City on the Edge of Forever", Eric eats an entire chocolate cake that could theoretically feed the entire school bus for about... a day or so, at least. Which they happen to get trapped inside as it gets stuck on the edge of a cliff.
During the beginning of "The Death of Eric Cartman", Eric eats all the skin off of an order of extra crispy KFC for all four of the boys.note This results in one of the mere two instances in the entire series where Kenny actually cries (the other being "The China Problem"). He ends up rupturing his spleen and clogging the toilet when defecating it, causing him to actually believe himself dead.
Kyle: You wouldn't have diarrhea if you didn't eat so much, fatass!
Steven and Amethyst from Steven Universe. Sugar has stated that Amethyst doesn't have to eat (being a Crystal Gem) but she likes to because it's fun. Steven is shown to eat a lot of junk food and is quite affectionate towards stuff like Cookie Cats and the Together Breakfast he made.
Stimpy of The Ren & Stimpy Show will often devour large meals and sometimes objects bigger than himself in seconds. In one episode he ate himself when he split into two separate beings.
The Replacements: Dick Daring is so bad he ate forty pounds of ice cream just so he could beat the record at the local ice cream shop by one pound. A record that he set. A record that he set a day ago.
Homer Simpson, exhibit A above. Tis no man, 'tis a remorseless eating machine! As a result, Springfield's "All You Can Eat" restaurants fear Homer greatly. But many food vendors singlehandedly make their entire living, and pay their childrens' college fees off of just Homer alone, making him a valuable commodity to others. According to Homer himself, "it's glandular."
Police Chief Clancy Wiggum's round body says it all. Although mostly known for his sweet tooth, he's open to a wide range of food including some pretty exotic stuff.
Comic Book Guy actually trumps both of the above in terms of sheer size, though this is due to being perhaps the most lethargic man in all of Springfield. And in Springfield... THAT'S an accomplishment.
The German foreign exchange student Uter is pretty much solely defined by his absolute lust for all things chocolate.
Though Bart isn't usually known for his eating habits, he's also overweight and there have been some times where he has overindulged to a great extent especially on candy.
In fact, there is one episode where Springfield breaks the record for being America's Fattest City. (Homer is rather proud of this accomplishment, exclaiming, "In your face, Milwaukee!" but Marge is embarrassed by it, and puts the family on a diet.)
In The Smurfs there's Big Mouth, an ogre who, as his name implies, is always hungry (although he can eat practically anything).
Mario in The Super Mario Bros Super Show! could easily put away a lot of food, especially pasta, although his skinnier brother, Luigi could eat just as much sometimes.
Owen from Total Drama, so much so that in Action he ate an entire feast in minutes without realizing it was prop food until after he was done. It left him constipated for several episodes.
Sugar takes over this role in Pahkitew Island. As an Expy of both Owen andHoney Boo-Boo, she's not just a bottomless pit on par with Owen, but is much more of an Extreme Omnivore as well. She'd probably eat that feast even if she knew it was prop food beforehand, and not suffer any ill effects from it either.
Winnie-the-Pooh. His hunger for honey knows no bounds, and eats an entire potful with the help of a Rumbling Stomach.
Captain Huggyface in WordGirl definitely qualifies, as he is used to nullify all the attacks of the Butcher and Chuck the Evil Sandwich Making Guy. He also is shown eating large amounts of ice cream during scenes, and whenever they come across some type of food, Huggy always has to look into it.
Dr. Two Brains, who is quite thin, can eat entire buildings of cheese without getting full. He was also seen chewing through walls and swallowing the pieces he chewed off.
Ord on Dragon Tales is often seen eating items in one bite, when the group goes out to a fair or carnival, the food shack is the first place he goes, and he often has an extra stock of food in his pouch.