James Cagney character C.R. MacNamara
Liselotte Pulver character Fräulein Ingeborg
Horst Buchholz character Otto Ludwig Piffl
Pamela Tiffin character Scarlett Hazeltine
Howard St. John character Wendell P. Hazeltine
Loïs Bolton character Melanie Hazeltine
Hanns Lothar character Schlemmer
Karl Lieffen character Fritz
Arlene Francis character Phyllis MacNamara
Leon Askin character Peripetchikoff
Ralf Wolter character Borodenko
Hubert von Meyerinck character Count von Droste Schattenburg
Peter Capell character Mishkin
Til Kiwe character Reporter
Henning Schlüter character Dr. Bauer
Karl Ludwig Lindt character Zeidlitz
Christine Allen character Cindy MacNamara
John Allen character Tommy MacNamara
John Banner character Krause / Haberdrasher (voice)
Max Buchsbaum character Tailor (uncredited)
Werner Buttler character East German Policeman (uncredited)
Red Buttons character MP Sergeant (uncredited)
Paul Bös character Krause (uncredited)
Josef Coesfeld character Hairdresser (uncredited)
Siegfried Dornbusch character East German Policeman (uncredited)
Gernot Duda character Suitcase Salesman (uncredited)
Otto Friebel character Interrogator (uncredited)
Friedrich Hollaender character Conductor at Grand Hotel (uncredited)
Rose Renée Roth character Berta (uncredited)
Sig Ruman character Count von Droste Schattenburg (voice) (uncredited)
Helmut Schmid character East German Policeman (uncredited)
Jaspar von Oertzen character Haberdasher (uncredited)
