Dave Barry as Cary Grant / Clark Gable / Bing Crosby / Lewis Stone / Ned Sparks / Groucho Marx (voice) (uncredited)

Sara Berner as Greta Garbo / Coat Check Girl / Henry Fonda's Mother / Dorothy Lamour (voice) (uncredited)

Mel Blanc as Jerry Colonna / Peter Lorre (voice) (uncredited)

Kent Rogers as Jimmy Stewart / Mickey Rooney / Henry Fonda (voice) (uncredited)