Marshie
From Homestar Runner Wiki

Marshie (capital M, and then "arshie", as he would put it) is the genuinely alarming mascot for Fluffy Puff Marshmallows. He serves as a caustic and slightly absurd satire of any number of mascots hawking products to children.
Marshie has no known relationships with any H*R characters, save Homestar Runner, who "hates that freakin' marshmallow," probably because Marshie took his job as Fluffy Puff pitchman.
Marshie is infamously - and intentionally - creepy. His commercials have featured non-sequitur rantings, disturbing close-ups, inappropriate sound effects, faintly desperate pleas and even a behind-the-scenes nervous breakdown. He also tends to announce his appearances by uttering hackneyed slang phrases such as " 'Sup fools!" and "Oh snap!" in a heavy-handed attempt to convince kids to like him. However, this technique is essentially nullified by Marshie's innate creepiness, leaving the acceptance he seeks safely out of reach.
The use of Nibbles as a mascot in bottom 10 may be evidence for Marshie's increasing unsuitability as a mascot, or at least in specifically promoting Fluffy Puff's bite-sized Nibblers product.
Beyond his creepy demeanor, it is insinuated that Marshie is not simply disturbing but actually evil. He is named as a "bad guy" in the song "Strong Bad is a Bad Guy," and the giant balloon of him crashed into Coach Z and Marzipan at the conclusion of the 4Tst Annual Fall Float Parade. Finally, a vaporized version of Marshie in candy product cheerily warns that "you can't destroy me!"
Marshie shares a resemblance to both the Carl's Jr./Hardee's star and the characters on the Elyon kosher marshmallows bag.
Filmography
- Debut: Fluffy Puff Commercial (as a picture on the bag)
- Complete Filmography