• 
  Angela Lansbury

  Audrey Quail
• 
  Janet Leigh

  Olga Alexandrova aka Maria Buhlen
• 
  Tito Vuolo

  Italian billposter
• 
  Melville Cooper

  Pvt. David Moonlight
• 
  Konstantin Shayne

  Prof. Serge Bruloff
• 
  Doris Lloyd

  Mrs. Omicron
• 
  Alan Napier

  The General
• 
  Francis L. Sullivan

  Col. Humphrey 'Blinker' Omicron

• 
  Eric Wilton

  colonel
• 
  Walter Pidgeon

  Col. Michael 'Hooky' Nicobar
• 
  Louis Calhern

  Col. Piniev
• 
  Peter Lawford

  Maj. John 'Twingo' McPhimister
• 
  Ethel Barrymore

  The Mother Superior ('Mother Auxilia')
• 
  Terry Kilburn

  Transport Pilot
• 
  Robert Coote

  Brigadier C.M.V. Catlock

• 
  Kasia Orzazewski

  Sister Kasmira
• 
  Janine Perreau

  Mickey Mouse
• 
  Tamara Shayne

  Helena Nagard
• 
  Roman Toporow

  2nd Lt. Maxim Omansky