Murray Hamilton as Wally Sanders

Joyce Taylor as Soldier

Hugh Marlowe as John Hull

Khigh Dhiegh as Kang

Charlie Briggs as Mike the Chauffeur

Norma Varden as Miss Pittford

Garth Benton as Peter Van Hagen

María Cristina Servera as Argentina

Janet Mary Prance as Australia

Penny Anne Mills as Canada

Alexandra Bastedo as England

Ariane Glaser as France

Ilona Schütze as Germany

Anna Baj as Italy

Aiko Sakamoto as Japan

Gina Trikonis as Russia

Judy Pace as Liberia

Luz Gloria Hervias as Mexico

Marie-Louise Bielke as Sweden

Ignacia Farias Luque as Venezuela

Lynne Sue Moon as China

Kathy Dunn as Candace 'Candy' Hull

Emil Sitka as Ludwig (uncredited)