Paul Newman as Michael Armstrong

Julie Andrews as Sarah Sherman

Lila Kedrova as Countess Kuchinska

Hansjörg Felmy as Heinrich Gerhard

Tamara Toumanova as Ballerina

Ludwig Donath as Gustav Lindt

Wolfgang Kieling as Hermann Gromek

Günter Strack as Karl Manfred

David Opatoshu as Mr. Jacobi

Gisela Fischer as Dr. Koska

Mort Mills as Farmer

Carolyn Conwell as Farmer's Wife

Arthur Gould-Porter as Freddy

Gloria Govrin as Miss Mann

Norbert Schiller as Professor Gutman (uncredited)

Leoda Richards as Woman Backstage (uncredited)

Frank Baker as Party Guest (uncredited)

Alfred Hitchcock as Man in Hotel Lobby with Baby (uncredited)

William Glover as British Correspondent (uncredited)

Mischa Hausserman as Idealistic Young Man (uncredited)

Britt Semand as Magda (uncredited)

William Yetter Sr. as Post Office Patron (uncredited)

Kaaren Verne as Stewardess (uncredited)

Paul Sorensen as Swedish Immigration Officer (uncredited)

Hedley Mattingly as Airline Official (uncredited)

Curt Lowens as VOPO Officer at Roadblock (uncredited)

Horst Ebersberg as East German Interpreter (uncredited)

Dick Cherney as Clerk (uncredited)

Wilhelm von Homburg as Blonde Twin in Bus (uncredited)

Albert Szabo as Herr Albert (uncredited)

Robert Boon as Prof. Winkelmann (uncredited)