C.L Mangus is a villain in the Scooby-Doo franchise.
Scooby-Doo! Where Are You?
Mr. Magnus first appeared In the episode, Go Away Ghost Ship, where he was in charge of a shipping company and going to lose his business, so he dressed up as the Ghost Pirate Redbeard (with help from two henchmen as his crew) and stole his own cargo for the insurance.
Scooby-Doo 2: Monsters Unleashed
Mangus appeared in the second live action movie.
Scooby-Doo! Who's Watching Who?
Mangus appeared in this game.