 Paul NewmanMichael Armstrong | Michael Armstrong |
 Julie AndrewsSarah Sherman | Sarah Sherman |
 Lila KedrovaCountess Kuchinska | Countess Kuchinska |
 Hansjörg FelmyHeinrich Gerhard | Heinrich Gerhard |
 Tamara ToumanovaBallerina | Ballerina |
 Ludwig DonathGustav Lindt | Gustav Lindt |
 Wolfgang KielingHermann Gromek | Hermann Gromek |
 Günter StrackKarl Manfred | Karl Manfred |
 David OpatoshuMr. Jacobi | Mr. Jacobi |
 Gisela FischerDr. Koska | Dr. Koska |
 Mort MillsFarmer | Farmer |
| CCarolyn ConwellFarmer's Wife | Farmer's Wife |
 Arthur Gould-PorterFreddy | Freddy |
| GGloria GovrinMiss Mann | Miss Mann |
 Norbert SchillerProfessor Gutman (uncredited) | Professor Gutman (uncredited) |
 Leoda RichardsWoman Backstage (uncredited) | Woman Backstage (uncredited) |
 Frank BakerParty Guest (uncredited) | Party Guest (uncredited) |
 Alfred HitchcockMan in Hotel Lobby with Baby (uncredited) | Man in Hotel Lobby with Baby (uncredited) |
| WWilliam GloverBritish Correspondent (uncredited) | British Correspondent (uncredited) |
| MMischa HaussermanIdealistic Young Man (uncredited) | Idealistic Young Man (uncredited) |
 Britt SemandMagda (uncredited) | Magda (uncredited) |
| WWilliam Yetter Sr.Post Office Patron (uncredited) | Post Office Patron (uncredited) |
 Kaaren VerneStewardess (uncredited) | Stewardess (uncredited) |
 Paul SorensenSwedish Immigration Officer (uncredited) | Swedish Immigration Officer (uncredited) |
 Hedley MattinglyAirline Official (uncredited) | Airline Official (uncredited) |
 Curt LowensVOPO Officer at Roadblock (uncredited) | VOPO Officer at Roadblock (uncredited) |
 Horst EbersbergEast German Interpreter (uncredited) | East German Interpreter (uncredited) |
| DDick CherneyClerk (uncredited) | Clerk (uncredited) |
 Wilhelm von HomburgBlonde Twin in Bus (uncredited) | Blonde Twin in Bus (uncredited) |
| AAlbert SzaboHerr Albert (uncredited) | Herr Albert (uncredited) |
