|Real world information|
|First appearance||"Billy & Mandy's Big Boogey Adventure"|
|Voice actor||Greg Ellis|
Creeper was Boogey's henchman in the movie, "Billy and Mandy's Big Boogey Adventure."
Creeper was a green monster with long black hair, a gigantic down-pointing nose and goggles.
Creeper residence is in The Underworld. Creeper has no aliases. Creeper has no family. Creeper's species is a monster. Creeper's occupation is working as Boogey's henchman. Creeper has no powers and abilities.
- Creeper says that Boogey broke his will with his sleep spell. This could be why creeper worked for him on the ship.
- Creeper appears slightly similar to the creature of the same name from Scooby-Doo.