1956 · 6 min · Directed by Seymour Kneitel
The Ghostly Trio give Casper the Friendly Ghost a pill to make him as mean as they are.
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)
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