Lt. William 'Bill' Gordon / Anson Meridan

William Powell

Joel Carter

Rosalind Russell

Olivia Karloff

Binnie Barnes

Maj. William Brennan

Lionel Atwill

Capt. Nicholas "Nikki" Nieterstein

Cesar Romero

John Carter, Assistant Secretary of War

Samuel S. Hinds

Russian Ambassador Gregory

Henry Stephenson

Dr. R.A. Jackson

Frank Reicher

Prof. Martin

Charley Grapewin

Roberts

Leonard Mudie

G-Man

Howard Hickman

Secretary of War Baker

Charles Trowbridge

Mrs. Hendricks

Margaret Dumont

de Segroff

Murray Kinnell

Recruiter

Sid Silvers

Red Cross Nurse

Eileen O'Malley

Lady Cavendish (uncredited)

Mary Forbes

Agent Patrick O'Reilly (uncredited)

Tom Dugan

2nd Lieutenant (uncredited)

Bert Moorhouse

Bobbie Burns (uncredited)

Bernadene Hayes

Sentry

Blair Davies

Chaplain (uncredited)

Winter Hall

De Segroff's Associate (uncredited)

Hedwiga Reicher

Orderly (uncredited)

Cyril Ring

Orderly (uncredited)

Rollo Dix

Carter's Aide (uncredited)

Milburn Stone

G-Man (uncredited)

Earl Eby

Desk Clerk Assistant (uncredited)

Theodore von Eltz

Diplomat (uncredited)

Henry Mowbray

Butler (uncredited)

Lowden Adams

Jackson's Assistant (uncredited)

Sidney Bracey

1st Military Policeman (uncredited)

Edgar Dearing

2st Military Policeman (uncredited)

James Flavin

Pvt. Dean (uncredited)

Sherry Hall

German Torpedo Man (uncredited)

Hans Fuerberg

Code Room Clerk (uncredited)

Johnny Arthur

Kaieneff (uncredited)

Leonid Snegoff

Taxi Driver (uncredited)

Sterling Holloway

Drug Store Clerk (uncredited)

Jack Hatfield

Hotel Desk Clerk (uncredited)

William V. Mong

Headwaiter

William Stack

Country Boy (uncredited)

Mickey Rooney

Doorman (uncredited)

Melville Cooper

G-Man (uncredited)

Bob Perry

Taxi Driver

Richard Powell

Radio Operator (uncredited)

Rudolph Anders

Colonel Petroff (uncredited)

Sam Savitsky

Porter

Sam McDaniel

Private

James Burtis

Gardner (uncredited)

Morgan Wallace

Customs Officer in Mexico (uncredited)

Frank Lackteen

Army Officer

Arno Frey

Mexican (uncredited)

Belle Mitchell

Sergeant

Alan Bridge

Mexican (uncredited)

Sam Ash

Telegrapher (uncredited)

John Harmon

Decoder (uncredited)

Lynton Brent

Cop

Lee Phelps

Barber

Harry 'Zoop' Welch

Orderly (uncredited)

Michael Vallon

Sailor (uncredited)

Monte Vandergrift

Partitioner (uncredited)

Larry Steers

Carter's Receptionist (uncredited)

William Newell

Code Room Clerk (uncredited)

Gino Corrado

Café Doorman (uncredited)

Charles Coleman

Man in Code Room (uncredited)

Edward Earle

Reporter

Wally Maher

Cashier (uncredited)

Harry C. Bradley

German-Speaking Bellhop (uncredited)

David Burns

Tailor (uncredited)

Lee Kohlmar

Boris Stronskoff - Russian Singer (uncredited)

Max Barwyn

Ship's Captain

Guy Usher

Officer (uncredited)

Frank O'Connor

Kesterman (uncredited)

Eric Wilton

Barber (uncredited)

Harry 'Zoup' Welsh