The Creeper is a villain in the Scooby-Doo Franchise.
Creeper is a phantom/zombie who walks through walls and robs banks. Creeper was one of the classic Scooby-Doo monsters, was featured twice in the Scooby-Doo universe.
Scooby-Doo! Where Are You?
The Creeper first episode in the episode, Jeepers! It's The Creepers! The Mystery, Inc. kids are on their way to a school Barn Dance and Hayride on an old farm. They come across a bank guard who was lying on the road knocked out, as he comes around he gives Fred a blank piece of paper and mumbles "The flame will tell the Creeper." As they look for clues, Scooby finds a letter with the home address of the bank manager which is near where they are, so they go there for help (not knowing the bank manager was actually the Creeper until they unmasked him). After they left, he understood the message the bank guard was trying to tell the gang. He goes after them to get the paper which would show he was the Creeper. Scooby angered the bank manager: "blasted meddling kids!".
Scooby-Doo and the Cyber Chase and Scooby-Doo and the Cyber Chase: The Videogame
The Creeper appears in the movie, Scooby-Doo and the Cyber Chase on the final level, along with monsters introduced on The Scooby-Doo show, and chase both gangs. He chases the Daphnes twice: Once to the funhouse, and again later in the film. He and the other monsters disappear once Scooby gets the box of Scooby Snacks after which all the monsters are gone. He is also the GBA version of the film's videogame.
Scooby-Doo! Night of 100 Frights
The Creeper appeared as a recurring enemy in this game. Velma also sees the Creeper in her glasses, which was planted by the Mastermind.
Scooby-Doo: The Movie's unused opening
The creeper appears in the alternate opening of the first live-action movie, along with Frankenstien and The Phantom Shadow.
Scooby-Doo 2: Monsters Unleashed
The Creeper made some cameo appearance in the second live-action movie (properly as consumption for the first live-action movie's alternate opening). First there is a Creeper banner on the front of the museum and inside his costume makes an appearance next to the costume of Chickenstien.
He's appeared in Some Scooby-Doo Commercials for StateFarm and Direct TV
Scooby-Doo Mystery Incorporated
He appeared on various Scooby-Doo Mystery Incorporated episodes, including the Legend of Alice May.
Scooby-Doo! Mask of The Blue Falcon
He appeared in the opening credits of Mask of The blue Falcon, getting caged by Fred.
Scooby-Doo! WrestleMania Mystery
His most recent appearance was during the opening of WrestleMania Mystery.