The Werewolf is one of the monsters in the Scooby-Doo, Where Are You! episode "A Gaggle of Galloping Ghosts." He appears on the episode along with Frankenstein and Dracula. This monster was one of the disguises of Big Bob Oakley.
This Werewolf also appears in Scooby-Doo! Night of 100 Frights as one of the monsters brought back by the Mastermind.
There is an action figure of the Werewolf.