John Nesbitt
— Narrator (voice)
Mark Daniels
— Nancy's Husband (uncredited)
Ava Gardner
— Lucretia Borgia (uncredited)
Tom Herbert
— Man Dining with Lucretia Borgia (uncredited)
Mitchell Lewis
— Officer on Santa Maria (uncredited)
Dorothy Morris
— Nancy (uncredited)
Dick Rich
— Mutinous Sailor (uncredited)