Luis van Rooten

as King / Grand Duke (voice)

as Dr. Carlo Fiorillo

as Joe Cusack

as Jerry Harris

as Joe Feinson

as Matz

as Mr. Myers

as Clausel

as F.B. Barton

as Commissioner Alberto Berado

as Simon

as Edwin Orlin

as Samuel Carlin

as Juan

as George

as Harry Shelton

as Mr. Binks

as Lutz

as Dad

as Mel Tucker