Diana Ashmore
Major Surov
Paul Kedes (as Jason Robards Jr.)
Hugh Deverill
Harold Rhinelander
Margie Rhinelander
Billy Rhinelander (as Ronny Howard)
Flip Rhinelander
Csepege
Simon Avron
Teklel Hafouli
Françoise Hafouli (as Marie Daems)
Eva
Borbala (as Barbara Von Nady)
Jacques Fabbry
Von Rachlitz (as Siegfried Schurenberg)
Gisela von Rachlitz
Mitsu
Donatella Calucci
Lt. Tulpin (as Dimitry Fedotoff)
Capt. Dembinski
Patko
Bowler Hat
Capt. Ornikidze
Szabó Bácsi
Major Ilyashev
Serving Girl in Black Scarf (uncredited)
Russian Officer lighting Paul Kedes' cigarette (uncredited)
Rosso (uncredited)