The 13 Ghosts of Scooby-Doo S1, E11

Shaggy and Scooby and friends must return 13 ghosts to a magic chest which they inadvertently released.

Cast:Bob Arbogast , Gay Autterson , Susan Blu , Hamilton Camp , Victoria Carroll , Peter Cullen , Marshall Efron , Patricia Elliott , Bernard Erhard , Linda Gary , Joan Gerber , Phil Hartman , Alice Hirson , Bob Holt , Arte Johnson , Casey Kasem , Marilyn Lightstone , Kenneth Mars