Spencer Tracy as Dan Haywood

Richard Widmark as Tad Lawson

Maximilian Schell as Hans Rolfe

Burt Lancaster as Ernst Janning

Marlene Dietrich as Mrs. Bertholt

Judy Garland as Irene Hoffman Wallner

Montgomery Clift as Rudolph Petersen

William Shatner as Harrison Byers

Werner Klemperer as Emil Hahn

Kenneth MacKenna as Kenneth Norris

Torben Meyer as Werner Lampe

Joseph Bernard as Abe Radnitz

Alan Baxter as Matt Merrin

Edward Binns as Senator Burkette

Virginia Christine as Mrs. Halbestadt

Otto Waldis as Pohl

Karl Swenson as Heinrich Geuter

Martin Brandt as Friedrich Hofstetter

Ray Teal as Curtiss Ives

John Wengraf as Karl Wieck

Ben Wright as Halbestadt

Howard Caine as Hugo Wallner

Olga Fabian as Elsa Lindnow

Paul Busch as Schmidt

Bernard Kates as Max Perkins

Bess Flowers as Concert Attendee (uncredited)

Frank Baker as Courtroom Spectator (uncredited)

Brandon Beach as Courtroom Spectator (uncredited)

Joseph Crehan as Courtroom Spectator at Verdict (uncredited)

Sayre Dearing as Courtroom Spectator (uncredited)

Sam Harris as Courtroom Spectator (uncredited)

Shep Houghton as Courtroom Spectator (uncredited)

Reed Howes as Courtroom Spectator (uncredited)

William Meader as Courtroom Spectator (uncredited)

Colin Kenny as Courtroom Spectator (uncredited)

George Nardelli as Courtroom Spectator (uncredited)

Waclaw Rekwart as Courtroom Spectator (uncredited)

Jack Stoney as Courtroom Spectator (uncredited)

Oscar Beregi Jr. as Waiter at Court Lounge (uncredited)

Norbert Schiller as Waiter (uncredited)

Chet Brandenburg as Concert Attendee (uncredited)

Herman Hack as Concert Attendee (uncredited)

Sheila Bromley as Mrs. Ives (uncredited)

Harold Miller as Courtroom Officer (uncredited)

Hans Moebus as Assistant Defense Attorney (uncredited)

Ed Nelson as Captain at Nightclub Announcing Call-up of Officers (uncredited)

William H. O'Brien as German Prisoner in Cafeteria (uncredited)

Rudy Solari as Interpreter in Courtroom (uncredited)

Bert Stevens as German Prisoner in Cafeteria (uncredited)

Hal Taggart as German Counsel (uncredited)

Jana Taylor as Elsa Scheffler (uncredited)

Ralph Moratz as Army Major at Trial (uncredited)

Tony Regan as Courtroom Spectator (uncredited)

Dick Cherney as Concert Attendee (uncredited)

Norman Stevans as Club Patron (uncredited)

Raoul Freeman as Courtroom Spectator (uncredited)