Walter Huston

Ambassador Joseph E. Davies

Ann Harding

Marjorie Davis

Oskar Homolka

Maxim Litvinov

George Tobias

Freddie

Gene Lockhart

Viatcheslav Molotov

Eleanor Parker

Emlen Davies

Richard Travis

Paul

Helmut Dantine

Maj. Kamenev

Victor Francen

Vyshinsky, chief trial prosecutor

Henry Daniell

Minister von Ribbentrop

Barbara Everest

Mrs. Litvinov

Maria Palmer

Tanya Litvinov

Moroni Olsen

Col. Faymonville

Minor Watson

Loy Henderson

Vladimir Sokoloff

Mikhail Kalinin, USSR president

John Abbott

Grinko (uncredited)

Ernie Adams

Heckler (uncredited)

Fred Aldrich

Man at Bar in Montage (uncredited)

Demetrius Alexis

O.G.P.U. Man (uncredited)

Herbert Ashley

Electrician at Madison Square Garden (uncredited)

Hooper Atchley

Father (uncredited)

Felix Basch

Dr. Hjalmar Schacht - Banker (uncredited)

Ted Billings

Man at Inn (uncredited)

Oliver Blake

Heckler (uncredited)

Monte Blue

Heckler (uncredited)

Eugene Borden

M. Delbeau - French Minister (uncredited)

Egon Brecher

Heinrich Sahm (uncredited)

Barbara Brown

Well-Wisher at Train (uncredited)

Morgan Brown

American Delegate (uncredited)

Alexander Campbell

Senator (uncredited)

Maurice Cass

Yugoslavian President (uncredited)

Feodor Chaliapin Jr.

Shop Foreman (uncredited)

Cyd Charisse

Galina Ulanova - Ballerina (uncredited)

Jack Chefe

Newspaperman in Courtroom (uncredited)

Virginia Christine

Maria - Beautician (uncredited)

Winston Churchill

Self (archive footage) (uncredited)

Wallis Clark

Well-wisher with Bill (uncredited)

Edmund Cobb

Heckler (uncredited)

James Conaty

Dinner Guest (uncredited)

Harry Cording

Blacksmith (uncredited)

Jerome Cowan

Spendler (uncredited)

Noel Cravat

Workman (uncredited)

Joseph Crehan

Reporter (uncredited)

Jacqueline Dalya

Russian Girl (uncredited)

William B. Davidson

Senator (uncredited)

George Davis

French Reporter (uncredited)

Jean Del Val

Molotov's Secretary (uncredited)

John Dilson

American Senator (uncredited)

Warren Douglas

Emlen's Well-Wisher at Train Station (uncredited)

Anthony Eden

Self (archive footage) (uncredited)

Fred Essler

Dutch Banker (uncredited)

Herbert Evans

Courtroom Spectator (uncredited)

Adolph Faylauer

German Diplomat at Train Station (uncredited)

Frank Faylen

Reporter (uncredited)

Frank Ferguson

American Newsman (uncredited)

James Flavin

American Senator (uncredited)

Lee Tung Foo

Tsiang Ting Fu - Chinese Ambassador (uncredited)

Ross Ford

Johnny - Emlen's Well-Wisher at Train Station (uncredited)

Jack Gardner

Newsreel Photographer (uncredited)

Gene Gary

Russian Foreman (uncredited)

Joseph W. Girard

American Senator (uncredited)

Lisa Golm

Train Passenger Arriving Late (uncredited)

Christine Gordon

Parachutist (uncredited)

William Gould

Isolationist (uncredited)

Alexander Granach

Russian Air Force Officer (uncredited)

Hermann Göring

Self (archive footage) (uncredited)

John Hamilton

Charlie - American Newsman (uncredited)

Sam Harris

Parade Spectator (uncredited)

Henry Hebert

Isolationist (uncredited)

Louis Jean Heydt

American Newsman (uncredited)

Herbert Heyes

Congressman (uncredited)

Adolf Hitler

Self (archive footage) (uncredited)

David Hoffman

Mr. Radek (uncredited)

Mauritz Hugo

Heckler (uncredited)

Arthur Stuart Hull

Dinner Guest (uncredited)

Olaf Hytten

Parliament Member (uncredited)

Frieda Inescort

Madame Molotov (uncredited)

Ted Jacques

Machinist (uncredited)

Frank Jaquet

Dutch Banker (uncredited)

Erwin Kalser

German Businessman (uncredited)

Eddie Kane

Heckler (uncredited)

Kurt Katch

Gen. Semen Timoshenko (uncredited)

Edward Keane

Isolationist (uncredited)

Kenner G. Kemp

Newspaperman (uncredited)

Bill Kennedy

American Newsman (uncredited)

Colin Kenny

Parade Soldier Spectator (uncredited)

Emmett King

British Delegate (uncredited)

Manart Kippen

Joseph Stalin (uncredited)

Adia Kuznetzoff

O.G.P.U. Man (uncredited)

Charles Lane

Man in Kitchenin Montage (uncredited)

Ivan Lebedeff

Mr. Rosengoltz (uncredited)

Marion Lessing

Telephone Operator (uncredited)

Doris Lloyd

Mrs. Churchill (uncredited)

Arthur Loft

Man with Microphone (uncredited)

Wilbur Mack

American Newsman (uncredited)

Michael Mark

Timid Man (uncredited)

Janet Martin

Natasha (uncredited)

John Maxwell

Reporter at Train (uncredited)

Mike Mazurki

Russian Machinist Workman (uncredited)

Lafe McKee

Radio Listener (uncredited)

Frank McLure

League of Nations Official / Ball Guest (uncredited)

Tina Menard

Telephone Operator (uncredited)

Harold Miller

Dancer at Ball / Congressman (uncredited)

Howard M. Mitchell

Heckler (uncredited)

Clive Morgan

Anthony Eden (uncredited)

Forbes Murray

Isolationist (uncredited)

Barry Norton

Ball Guest (uncredited)

Paul Panzer

Court Attendant (uncredited)

Emory Parnell

Uncaring Businessman (uncredited)

Francis Pierlot

Doctor (uncredited)

Frank Puglia

Trial Judge Ulrich (uncredited)

Emil Rameau

Ignacy Paderewski (uncredited)

Frank Reicher

General von Koestrich - German ambassador (uncredited)

Georges Renavent

President Paul van Zeeland (uncredited)

Lionel Royce

Herr Schmidt (uncredited)

Konstantin Shayne

Mr. Nikolai Bukharin (uncredited)

Robert Shayne

Engineer (uncredited)

Tamara Shayne

Russian Nurse (uncredited)

George Sorel

German Bund Member (uncredited)

Joseph Stalin

Joseph Stalin (archive footage) (uncredited)

Glenn Strange

Southerner in Montage (uncredited)

Sándor Szabó

Ski Troop Lieutenant (uncredited)

Mike Tellegen

O.G.P.U. Man (uncredited)

Ivan Triesault

Mr. Tukhachevsky (Former General) (uncredited)

Charles Trowbridge

Secretary of State Cordell Hull (uncredited)

Tom Tully

American Engineer in Russia (uncredited)

Edward Van Sloan

German Diplomat in Berlin (uncredited)

Henry Victor

Herr Schufeldt - Hamburg Official (uncredited)

Michael Visaroff

Barkov (uncredited)

Ray Walker

Raymond - Davies' Butler (uncredited)

Glen Walters

Mother (uncredited)

Pierre Watkin

Naval Attache (uncredited)

Frank Wayne

Heckler (uncredited)

John Wengraf

Polish Ambassador Grzybowski (uncredited)

Leigh Whipper

Haile Selassie (uncredited)

Marek Windheim

Mr. Sokolnikov (uncredited)

Joan Winfield

Telephone Operator (uncredited)

Victor Wong

Japanese Diplomat (uncredited)

Alfred Zeisler

German Train Conductor (uncredited)