Ben Wright

as Grimsby (voice)

as Rama (voice)

as Herr Zeller

as Halbestadt

as Roger (voice)

as Barrister Reading Charges (uncredited)

as Paisley

as Graves (uncredited)

as French Officer (uncredited)

as Milbanke

as BBC Announcer (uncredited)

as Walter Lumis

as Crawford Wright

as Clarence Keller

as Count Gaspar di Cassals

as Jeweler

as Dr. Ferguson

as Moore

as McCabe

as Dr. Leon Chaffee