| Creepy Cool Mutant Alien | |
|---|---|
 | |
| Gender | Female |
| Animal | Alien |
| Cartoon debut | "Tales of Grotesquely Grim Bunny" |
The Creepy Cool Mutant Alien is a fictional alien that appears in the Grotesquely Grim Bunny comic in the episode "Tales of Grotesquely Grim Bunny". It looks like a green, three-headed dragon.
When Arthur first sees it, he imagines it leaping out of the page and inviting him to come into the comic.
Later, Arthur has a nightmare in which Buster is casually having an ice cream sundae with the alien. The alien hisses at Arthur, but Buster tells it to watch its temper.