Discover
Cecil Roy
Casper (voice) (uncredited)
Sid Raymond
Ghost #1 (voice) (uncredited)
Jack Mercer
Ghost #3 / Evil Casper (voice) (uncredited)
Jackson Beck
Ghost #2 (voice) (uncredited)
The Ghostly Trio give Casper the Friendly Ghost a pill to make him as mean as they are.
Casper (voice) (uncredited)
Ghost #1 (voice) (uncredited)
Ghost #3 / Evil Casper (voice) (uncredited)
Ghost #2 (voice) (uncredited)
