Faye Dunaway as Denise Kreisler

Oskar Werner as Professor Egon Kreisler

Lee Grant as Lili Rosen

Sam Wanamaker as Carl Rosen

Lynne Frederick as Anna Rosen

David de Keyser as Joseph Joseph

Luther Adler as Professor Weiler

Wendy Hiller as Rebecca Lara Weiler

Julie Harris as Alice Fienchild

Nehemiah Persoff as Herr Hauser

Maria Schell as Frau Miriam Hauser

Paul Koslo as Aaron Pozner

Jonathan Pryce as Joseph Manasse

Brian Gilbert as Laurenz Schulman

Georgina Hale as Lotte Schulman

Milo Sperber as Rabbi

Max von Sydow as Captain Schroeder

Malcolm McDowell as Max Gunter

Helmut Griem as Otto Schiendick

Keith Barron as Purser Mueller

Anthony Higgins as Seaman Heinz Berg

Ian Cullen as Radio Officer

Donald Houston as Dr. Glauner

David Daker as First Officer

Constantine Gregory as Navigation Officer

Don Henderson as Engineering Officer

Ina Skriver as Singer

Orson Welles as José Estedes

James Mason as Dr. Juan Remos

Katharine Ross as Mila Hauser

Victor Spinetti as Dr. Erich Strauss

Michael Constantine as Luis Clasing

José Ferrer as Manuel Benitez

Ben Gazzara as Morris Troper

Fernando Rey as President Bru

Bernard Hepton as Milton Goldsmith

Günter Meisner as Robert Hoffman

Marika Rivera as Madame in Bordello

Janet Suzman as Leni Strauss

Frederick Jaeger as Werner Mannheim

Denholm Elliott as Admiral Canaris

Leonard Rossiter as Commander von Bonin

Philip Stone as Secretary

Luis Ciges as President Bru's Secretary (uncredited)

Laura Gemser as Estedes' Friend (uncredited)

Bernard Kay as Cuba Harbour Pilot (uncredited)