When You Witch Upon a Star

When You Witch Upon A Star is the eighth episode of The 13 Ghosts of Scooby-Doo.

Premise
Vincent's monitor of spirit world activity reveals that Marcella, an escaped demon, has given the three inept Brewster sisters The Black Book of Spells and instructions to cast spell number thirteen at Stonehenge at midnight. While Scooby and the gang follow the sisters to the ends of the earth trying to nab the spellbook, Vincent goes to the Zone of Eternal Evil -- where he quickly befriends a small creature named Idesvigg and is subsequently captured by Marcella.

Cast and Characters

 * Don Messick as Scooby-Doo and Scrappy-Doo
 * Casey Kasem as Shaggy Rogers
 * Heather North as Daphne Blake
 * Susan Blu as Flim-Flam
 * Vincent Price as Vincent Van Ghoul
 * Howard Morris as Bogel
 * Arte Johnson as Weerd
 * Marcella

Villains

 * Marcella