Walter Huston as Ambassador Joseph E. Davies

Ann Harding as Marjorie Davis

Oskar Homolka as Maxim Litvinov

George Tobias as Freddie

Gene Lockhart as Viatcheslav Molotov

Eleanor Parker as Emlen Davies

Richard Travis as Paul

Helmut Dantine as Maj. Kamenev

Victor Francen as Vyshinsky, chief trial prosecutor

Henry Daniell as Minister von Ribbentrop

Barbara Everest as Mrs. Litvinov

Dudley Field Malone as Winston Churchill

Roman Bohnen as Mr. Krestinsky

Maria Palmer as Tanya Litvinov

Moroni Olsen as Col. Faymonville

Minor Watson as Loy Henderson

Vladimir Sokoloff as Mikhail Kalinin, USSR president

Maurice Schwartz as Dr. Botkin

Joseph E. Davies as Self - in Prologue

Ernst Hauessermann as Ship's Steward

John Abbott as Grinko (uncredited)

Ernie Adams as Heckler (uncredited)

Ed Agresti as Second Trial Judge (uncredited)

Alex Akimoff as O.G.P.U. Man (uncredited)

Fred Aldrich as Man at Bar in Montage (uncredited)

Demetrius Alexis as O.G.P.U. Man (uncredited)

Elizabeth Archer as Elderly Woman (uncredited)

Louis V. Arco as Train Announcer (uncredited)

Sam Ash as American Senator (uncredited)

Herbert Ashley as Electrician at Madison Square Garden (uncredited)

Hooper Atchley as Father (uncredited)

Robert Baikoff as Soldier (uncredited)

Felix Basch as Dr. Hjalmar Schacht - Banker (uncredited)

Nino Bellini as Italian Reporter (uncredited)

Ted Billings as Man at Inn (uncredited)

Tina Blagoi as Russian Woman (uncredited)

Oliver Blake as Heckler (uncredited)

Monte Blue as Heckler (uncredited)

Eugene Borden as M. Delbeau - French Minister (uncredited)

Egon Brecher as Heinrich Sahm (uncredited)

Barbara Brown as Well-Wisher at Train (uncredited)

Morgan Brown as American Delegate (uncredited)

Alexander Campbell as Senator (uncredited)

George M. Carleton as Congressman (uncredited)

James Carlisle as American Senator (uncredited)

Maurice Cass as Yugoslavian President (uncredited)

Nikolai Celikhovsky as Soviet Official (uncredited)

Feodor Chaliapin Jr. as Shop Foreman (uncredited)

Luke Chan as Japanese Diplomat (uncredited)

Cyd Charisse as Galina Ulanova - Ballerina (uncredited)

Jack Chefe as Newspaperman in Courtroom (uncredited)

Alex Chivra as Pierre Laval (uncredited)

Peter Chong as Japanese Ambassador Shigemitsu (uncredited)

Virginia Christine as Maria - Beautician (uncredited)

Winston Churchill as Self (archive footage) (uncredited)

Wallis Clark as Well-wisher with Bill (uncredited)

Donald Clayton as Vincent Massey (uncredited)

Edmund Cobb as Heckler (uncredited)

James Conaty as Dinner Guest (uncredited)

Harry Cording as Blacksmith (uncredited)

Gino Corrado as Italian (uncredited)

Jerome Cowan as Spendler (uncredited)

Noel Cravat as Workman (uncredited)

Joseph Crehan as Reporter (uncredited)

Oliver Cross as Delegate Van deWater (uncredited)

Albert D'Arno as Frenchman (uncredited)

Jacqueline Dalya as Russian Girl (uncredited)

William B. Davidson as Senator (uncredited)

George Davis as French Reporter (uncredited)

Jean De Briac as French Maniac (uncredited)

Leander De Cordova as Heckler (uncredited)

Wally Dean as Isolaltionist (uncredited)

Igor Dega as Litvinov's Secretary (uncredited)

Jean Del Val as Molotov's Secretary (uncredited)

Lala Detolly as Russian Woman (uncredited)

John Dilson as American Senator (uncredited)

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

Eugene Eberle as Son (uncredited)

Oliver Eckhardt as Radio Listener (uncredited)

Anthony Eden as Self (archive footage) (uncredited)

Ben Erway as Heckler (uncredited)

Fred Essler as Dutch Banker (uncredited)

Herbert Evans as Courtroom Spectator (uncredited)

Adolph Faylauer as German Diplomat at Train Station (uncredited)

Frank Faylen as Reporter (uncredited)

Frank Ferguson as American Newsman (uncredited)

Robert Fischer as von Schulenberg (uncredited)

James Flavin as American Senator (uncredited)

Ray Flynn as Isolationist (uncredited)

Lee Tung Foo as Tsiang Ting Fu - Chinese Ambassador (uncredited)

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

William Forrest as American Newsman (uncredited)

Patrica Fung as Chinese Girl (uncredited)

Jack Gardner as Newsreel Photographer (uncredited)

Gene Gary as Russian Foreman (uncredited)

Art Gilmore as Commentator (uncredited)

Joseph W. Girard as American Senator (uncredited)

George Glebeff as O.G.P.U. Man (uncredited)

Sam Goldenberg as Mr. Leon Trotsky (uncredited)

Ernest Golm as Fat German (uncredited)

Lisa Golm as Train Passenger Arriving Late (uncredited)

Gregory Golubeff as Commandant of the Court (uncredited)

Christine Gordon as Parachutist (uncredited)

William Gould as Isolationist (uncredited)

Alexander Granach as Russian Air Force Officer (uncredited)

Jesse Graves as White House Butler (uncredited)

Henry Guttman as O.G.P.U. Man in Taxi (uncredited)

Hermann Göring as Self (archive footage) (uncredited)

John Hamilton as Charlie - American Newsman (uncredited)

Lumsden Hare as Lord Chilston (uncredited)

Sam Harris as Parade Spectator (uncredited)

Henry Hebert as Isolationist (uncredited)

Frank Hemphill as Grandfather (uncredited)

Yvonne Hendricks as Minister's Wife (uncredited)

Louis Jean Heydt as American Newsman (uncredited)

Herbert Heyes as Congressman (uncredited)

Adolf Hitler as Self (archive footage) (uncredited)

David Hoffman as Mr. Radek (uncredited)

Mauritz Hugo as Heckler (uncredited)

Arthur Stuart Hull as Dinner Guest (uncredited)

Olaf Hytten as Parliament Member (uncredited)

Frieda Inescort as Madame Molotov (uncredited)

Ted Jacques as Machinist (uncredited)

Frank Jaquet as Dutch Banker (uncredited)

Allen Jung as Japanese Diplomat (uncredited)

Erwin Kalser as German Businessman (uncredited)

Joseph Kamaryt as Old Russian (uncredited)

Eddie Kane as Heckler (uncredited)

Zoia Karabanova as Russian Train Engineer (uncredited)

Kurt Katch as Gen. Semen Timoshenko (uncredited)

Edward Keane as Isolationist (uncredited)

Kenner G. Kemp as Newspaperman (uncredited)

Bill Kennedy as American Newsman (uncredited)

Jack Kenney as Heckler (uncredited)

Colin Kenny as Parade Soldier Spectator (uncredited)

Emmett King as British Delegate (uncredited)

Manart Kippen as Joseph Stalin (uncredited)

Nicholas Kobliansky as O.G.P.U. Man (uncredited)

Al Kunde as Father (uncredited)

Adia Kuznetzoff as O.G.P.U. Man (uncredited)

Charles La Torre as Rosso - Italian Ambassador (uncredited)

Charles Lane as Man in Kitchenin Montage (uncredited)

Ivan Lebedeff as Mr. Rosengoltz (uncredited)

Gabriel Lenoff as O.G.P.U. Man (uncredited)

George Lessey as Bill - Well-wisher (uncredited)

Marion Lessing as Telephone Operator (uncredited)

Carl M. Leviness as Reporter (uncredited)

Adolf E. Licho as Bookseller (uncredited)

Rolf Lindau as German Reporter (uncredited)

Doris Lloyd as Mrs. Churchill (uncredited)

Kathleen Lockhart as Lady Chilston (uncredited)

Arthur Loft as Man with Microphone (uncredited)

Wilbur Mack as American Newsman (uncredited)

Rosa Margot as Russian Servant (uncredited)

Michael Mark as Timid Man (uncredited)

Janet Martin as Natasha (uncredited)

John Maxwell as Reporter at Train (uncredited)

Mike Mazurki as Russian Machinist Workman (uncredited)

Lafe McKee as Radio Listener (uncredited)

Frank McLure as League of Nations Official / Ball Guest (uncredited)

Alex Melesh as Mr. Pyatakov (uncredited)

Marie Melesh as Young Woman (uncredited)

Tina Menard as Telephone Operator (uncredited)

Harold Miller as Dancer at Ball / Congressman (uncredited)

Howard M. Mitchell as Heckler (uncredited)

Vyacheslav Molotov as Self (archive footage) (uncredited)

Clive Morgan as Anthony Eden (uncredited)

Forbes Murray as Isolationist (uncredited)

Martin Noble as Russian Officer (uncredited)

Barry Norton as Ball Guest (uncredited)

Field Norton as Congressman (uncredited)

Alex Novinsky as Courtroom Reporter (uncredited)

Pat O'Malley as Irish-American in Montage (uncredited)

Daniel Ocko as Mr. Yagoda (former O.G.P.U. Head) (uncredited)

Michel Panaieff as Ulanova's Dancing Partner (uncredited)

Paul Panzer as Court Attendant (uncredited)

Emory Parnell as Uncaring Businessman (uncredited)

Manuel París as Russian Military Policeman (uncredited)

Irene Pedrini as Telephone Operator (uncredited)

Frank Penny as Heckler (uncredited)

Francis Pierlot as Doctor (uncredited)

René Plaissetty as Coulendre (uncredited)

Frank Puglia as Trial Judge Ulrich (uncredited)

Louis Quince as Member of Parliament (uncredited)

Emil Rameau as Ignacy Paderewski (uncredited)

Frank Reicher as General von Koestrich - German ambassador (uncredited)

Duncan Renaldo as Italian Reporter (uncredited)

Georges Renavent as President Paul van Zeeland (uncredited)

Vera Richkova as Parachutist (uncredited)

Betty Roadman as Mother (uncredited)

Constantine Romanoff as Accused Member of O.G.P.U. (uncredited)

Nico Romoff as Foreman (uncredited)

Lionel Royce as Herr Schmidt (uncredited)

Richard Ryen as German Major (uncredited)

Loulette Sablon as Telephone Operator (uncredited)

Tanya Samova as Flower Girl (uncredited)

Sam Savitsky as Spadebeard (uncredited)

Ferdinand Schumann-Heink as German Reporter (uncredited)

Hans Schumm as Train Gate Guard (uncredited)

Irina Semochenko as Parachutist (uncredited)

Konstantin Shayne as Mr. Nikolai Bukharin (uncredited)

Robert Shayne as Engineer (uncredited)

Tamara Shayne as Russian Nurse (uncredited)

Evelynne Smith as Daughter (uncredited)

Leonid Snegoff as Kommodov (uncredited)

George Sorel as German Bund Member (uncredited)

Joseph Stalin as Joseph Stalin (archive footage) (uncredited)

Rudolf Steinboeck as German (uncredited)

Glenn Strange as Southerner in Montage (uncredited)

Mark Strong as Englishman (uncredited)

Sándor Szabó as Ski Troop Lieutenant (uncredited)

Ben Taggart as Guest at Davies' Speech (uncredited)

Mike Tellegen as O.G.P.U. Man (uncredited)

Zina Torchina as Parachutist (uncredited)

Ivan Triesault as Mr. Tukhachevsky (Former General) (uncredited)

Charles Trowbridge as Secretary of State Cordell Hull (uncredited)

Tom Tully as American Engineer in Russia (uncredited)

Olga Uljanovskaja as Russian Nurse (uncredited)

Edward Van Sloan as German Diplomat in Berlin (uncredited)

Henry Victor as Herr Schufeldt - Hamburg Official (uncredited)

Michael Visaroff as Barkov (uncredited)

Ray Walker as Raymond - Davies' Butler (uncredited)

Glen Walters as Mother (uncredited)

Pierre Watkin as Naval Attache (uncredited)

Peggy Watts as Telephone Operator (uncredited)

Frank Wayne as Heckler (uncredited)

John Wengraf as Polish Ambassador Grzybowski (uncredited)

Mischa Westfall as Petya (uncredited)

Leigh Whipper as Haile Selassie (uncredited)

Marek Windheim as Mr. Sokolnikov (uncredited)

Joan Winfield as Telephone Operator (uncredited)

Isabel Withers as Well-Wisher at Train (uncredited)

Jean Wong as Parachutist (uncredited)

Victor Wong as Japanese Diplomat (uncredited)

Jack Young as President Roosevelt (uncredited)

Alfred Zeisler as German Train Conductor (uncredited)

Esther Zeitlin as Russian Woman (uncredited)

Peter Michael as German Reporter (uncredited)

Bobby Hale as Man at Inn (uncredited)