!!Thin Characters

* Brittany from ''Literature/DimensionHeroes'' has been stated to fit into this trope, though it has yet to be seen.
* Anyone with paranormal powers from ''ShadowUnit''. Merely ''having'' paranormal powers doubles a person's calorie requirements, and actually using those powers burns even more calories.
* Tennyo, at [[SuperheroSchool Whateley Academy]] in the ''Literature/WhateleyUniverse''. It turns out her mom is a superhero with Energizer powers, and can almost out-eat Tennyo. The ''one'' time Tennyo's felt full is after consuming [[spoiler:a horde of demons]]. It's possible her BigEater habits are an effort to try and make up in quantity for some nutrient that Earth food lacks.
* The players of ''[[http://community.livejournal.com/jla_watchtower JLA Watchtower]]'' one time got into a debate of "Which team would win an eating contest? Wally West and Jesse Quick or Gar Logan and Aurora Andersen?" Aurora is about 5'2" and small-built, but is also an animal-shifter like Gar is. Her metabolism resembles a shrew's, especially if she's been working her shapeshifting a lot. Good thing she's also the TeamChef for the Titans.
* This ''[[http://dogs.icanhascheezburger.com/2008/05/14/funny-dog-pictures-toast-with-jam-please/ Lolcats]]'' page.
* Like Creator/DougWalker in the RealLife example down below, WebVideo/TheNostalgiaCritic seems to live off booze, cereal and junk food but never gets spots or looks fat.
* The guys from ''WebVideo/EpicMealTime'', who routinely prepare massive dishes with five-figure calorie counts and then eat them on camera. What probably helps their frames is that Harley is rather tall and Muscles Glasses (a personal trainer in real life) is often hitting the gym.
* Ian and Anthony of ''Smosh'' both qualify, although Ian seems to be the bigger eater.
* In ''SurvivalOfTheFittest'', Reika Ishida is shown to be one of these in pre-game, judging by the fact that when she orders something from A&W she gets a large hamburger meal alongside some chicken all for herself, and ''then'' snags some of the KFC bucket her sister and a friend are sharing. Note that this is a 4'9 tall and 95 pound teenage girl. Jay Holland also shows tendencies of this when he orders six [=McDoubles=] that have fries ''inside'' them, small cups normally used for condiments to be filled with Oreo [=McFlurry=], four more burgers stacked together, a bunch of milkshakes, a large Pepsi, and coffee at a [=McDonalds=]. Though, he does use the justification that [[spoiler: he just survived a terrorist attack, so he has the right to get fat]].
* The ''Wiki/SCPFoundation'' has, among its specimens, [[http://scp-wiki.wikidot.com/scp-913 SCP-913]] AKA "Mr. Hungry", an apparently ordinary African-American man who requires "the recommended daily caloric intake for a normal human ''every 2 hours''", otherwise he falls into a trace in which he will [[ExtremeOmnivore eat any solid matter he can]] in order to sate his appetite.
* In ''Literature/{{Curveball}}'', whenever [[SuperSpeed Red Shift]] goes all out, his powers also accelerate his metabolism for the next few days, with a corresponding increase in appetite. In addition, if he's going to be traveling a long distance at high speed, he has to wear a special IV harness that pumps glucose and nutrients directly into his bloodstream (and he's still hungry afterwards).

!!Fat Characters

* [[CloudCuckooLander Ronove]] in ''Roleplay/TheGamersAlliance'' eats a lot and always seem to stay hungry no matter how much he has eaten. His favourite foods are strawberry cakes and sand gnome legs.
* Terry Munford of DeviantArt's script series, ''{{Chris}}''.
* The chefs from ''WebVideo/EpicMealTime''
* Menelaos from ''GreekNinja''. After having caused a row by insulting Japanese food in front of Daichi, later on he is gulping down ramen and enjoying it. When Dawson questions him on it, he replies: ''"I like it, just I need a lot to get full"'', as his main grievance was that the portions were too small.