Mario (A Menace in Venice)

Mario dressed up as the Ghostly Gondolier to steal Antonio's medallion and three others like it, so he could find the lost treasure of Doge Malvolio IV. He didn't want to share it with Antonio, the only other known descendant of the Doge.

Physical appearance
Mario appeared to have brown eyes, but they were actually green, concealed by red contact lenses.

Appearances

 * The Scooby-Doo Show
 * A Menace in Venice