Jack Canna is a notorious counterfeiter and voiced by Don Messick. The New Scooby-Doo Movies, Season two: He was also known as Captain Cannaby and dressed up as the Ghost of Captain Scavenger while his unnamed partner dressed up as the Ghost of Injun Joe to scare people away from the Dixie Queen. They used a secret cave in Tom Sawyer's Cavern to print up their fake money and used the ship as the distribution point to the rest of the gang. Appearances, The New Scooby-Doo Movies: 202. The Haunted Showboat