Peter Lorre as Cornelius Leyden

Sydney Greenstreet as Mr. Peters

Zachary Scott as Dimitrios Makropoulos

Faye Emerson as Irana Preveza

Victor Francen as Wladislaw Grudek

Steven Geray as Karel Bulic

Florence Bates as Madame Elise Chavez

Eduardo Ciannelli as Marukakis (as Edward Ciannelli)

Kurt Katch as Colonel Haki

Marjorie Hoshelle as Anna Bulic

Georges Metaxa as Hans Werner

John Abbott as Mr. Pappas

Monte Blue as Abdul Dhris

David Hoffman as Konrad

Charles Andre as French Train Conductor (uncredited)

Vince Barnett as Card Game Kibitzer (uncredited)

Felix Basch as Vazoff (uncredited)

Edward Biby as Nightclub Patron (uncredited)

Ted Billings as Bar Patron (uncredited)

John Bleifer as Coach Driver (uncredited)

James Carlisle as Nightclub Patron (uncredited)

Jack Chefe as Casino Patron (uncredited)

Gino Corrado as Man at Grudek's Restaurant Table (uncredited)

Hella Crossley as Bulgarian Hostess (uncredited)

Carmen D'Antonio as Nightclub Dancer (uncredited)

Ray De Ravenne as French Taxi Driver (uncredited)

Carl Deloro as Minor Role (uncredited)

Helen Dickson as Casino Patron (uncredited)

Fred Essler as Mr. Bostoff (uncredited)

Tom Ferrandini as Nightclub Patron (uncredited)

Eddie Fields as Train Conductor (uncredited)

Antonio Filauri as Man Across Table (uncredited)

Joe Gilbert as Casino Patron (uncredited)

Gregory Golubeff as Yugoslav Doorkeeper (uncredited)

Dick Gordon as Nightclub Patron (uncredited)

Sol Gorss as Man Shadowing Peters and Leyden (uncredited)

Marion Gray as Nightclub Patron (uncredited)

Peter Helmers as Reporter (uncredited)

Rita Holland as Girl on Beach (uncredited)

Stuart Holmes as Casino Patron (uncredited)

Eddie Hyans as Turkish Man (uncredited)

Frank Lackteen as Turkish Soldier (uncredited)

Mary Landa as Flower Girl (uncredited)

Carl M. Leviness as Casino Patron (uncredited)

Adolf E. Licho as Bulgarian Café Proprietor (uncredited)

Alphonse Martell as Roulette Croupier (uncredited)

Lal Chand Mehra as Turkish Servant (uncredited)

Louis Mercier as Bulgarian Policeman (uncredited)

Jules Molnar as Servant with Tray (uncredited)

Sol Murgi as Casino Patron (uncredited)

John Mylong as Druhar (uncredited)

Carl Neubert as Druhar's Secretary (uncredited)

Alfred Paix as Card Player (uncredited)

Lotte Palfi Andor as Yugoslav Receptionist (uncredited)

Walter Palm as Butler (uncredited)

Nino Pipitone as Hotel Clerk in Istanbul (uncredited)

José Portugal as Casino Patron (uncredited)

Pedro Regas as Turkish Morgue Attendant (uncredited)

Georges Renavent as Fisherman (uncredited)

Phillip Rock as Boy on Beach (uncredited)

Leonid Snegoff as Stambulisky (uncredited)

Count Stefenelli as Party Guest (uncredited)

Rola Stewart as Girl on Beach (uncredited)

Nick Thompson as Porter on Train (uncredited)

Sid Troy as Police Officer (uncredited)

Albert Van Antwerp as Bulgarian Landlord (uncredited)

Michael Visaroff as Bulgarian Policeman (uncredited)

Marek Windheim as Hotel Clerk in Paris (uncredited)

Sam Harris as

Robert Robinson as