The Ghost of Geronimo was the disguise of Buck Masters, who was the owner of Big Red and who wanted to win a dog show; so he dog-napped all the other dogs wearing this disguise.
Appearances
Scooby-Doo, Where Are You! - Decoy for a Dognapper
Other Versions
Scooby Doo! Night of 100 Frights
The Ghost of Geronimo is a common villain in Scooby Doo! Night of 100 Frights. He is found within Mystic Manor and can be heard chanting strange incantations when unaware of Scooby's presence. He can shoot fire from his staff.