Lt. William 'Bill' Gordon / Anson Meridan
William Powell
Joel Carter
Rosalind Russell
G-Man
Howard Hickman
Secretary of War Baker
Charles Trowbridge
de Segroff
Murray Kinnell
Mrs. Hendricks (uncredited)
Margaret Dumont
Lady Cavendish (uncredited)
Mary Forbes
Agent Patrick O'Reilly (uncredited)
Tom Dugan
Bobbie Burns (uncredited)
Bernadene Hayes
Chaplain (uncredited)
Winter Hall
De Segroff's Associate (uncredited)
Hedwiga Reicher
Carter's Aide (uncredited)
Milburn Stone
Olivia Karloff
Binnie Barnes
Desk Clerk Assistant (uncredited)
Theodore von Eltz
Recruiter (uncredited)
Sid Silvers
Jackson's Assistant (uncredited)
Sidney Bracey
1st Military Policeman (uncredited)
Edgar Dearing
2st Military Policeman (uncredited)
James Flavin
German Torpedo Man (uncredited)
Hans Fuerberg
Taxi Driver (uncredited)
Sterling Holloway
Hotel Desk Clerk (uncredited)
William V. Mong
Country Boy (uncredited)
Mickey Rooney
Doorman (uncredited)
Melville Cooper
Maj. William Brennan
Lionel Atwill
Radio Operator (uncredited)
Rudolph Anders
Colonel Petroff (uncredited)
Sam Savitsky
Gardner (uncredited)
Morgan Wallace
2nd Lieutenant (uncredited)
Bert Moorhouse
Customs Officer in Mexico (uncredited)
Frank Lackteen
Mexican (uncredited)
Belle Mitchell
Sam Ash
Decoder (uncredited)
Lynton Brent
Orderly (uncredited)
Cyril Ring
Rollo Dix
Capt. Nicholas 'Nikki' Nieterstein
Cesar Romero
Michael Vallon
Sailor (uncredited)
Monte Vandergrift
Partitioner (uncredited)
Larry Steers
Carter's Receptionist (uncredited)
William Newell
Code Room Clerk (uncredited)
Gino Corrado
Johnny Arthur
Man in Code Room (uncredited)
Edward Earle
Cashier (uncredited)
Harry C. Bradley
German-Speaking Bellhop (uncredited)
David Burns
Boris Stronskoff - Russian Singer (uncredited)
Max Barwyn
John Carter, Assistant Secretary of War
Samuel S. Hinds
Café Doorman (uncredited)
Charles Coleman
Officer (uncredited)
Frank O'Connor
G-Man (uncredited)
Bob Perry
Kaieneff (uncredited)
Leonid Snegoff
Ship's Captain (uncredited)
Guy Usher
Diplomat (uncredited)
Henry Mowbray
Tailor (uncredited)
Lee Kohlmar
Private (uncredited)
James P. Burtis
Sergeant (uncredited)
Al Bridge
Army Officer (uncredited)
Arno Frey
Russian Ambassador Gregory
Henry Stephenson
Butler (uncredited)
Lowden Adams
Pvt. Dean (uncredited)
Sherry Hall
Red Cross Nurse (uncredited)
Eileen O'Malley
Kesterman (uncredited)
Eric Wilton
Earl Eby
Telegrapher (uncredited)
John Harmon
Barber (uncredited)
Harry 'Zoup' Welsh
Drug Store Clerk (uncredited)
Jack Hatfield
Dr. R.A. Jackson
Frank Reicher
Prof. Martin
Charley Grapewin
Roberts
Leonard Mudie
Sound Recordist
Douglas Shearer
Director
Sam Wood
Assistant Art Director
Edwin B. Willis
Director of Photography
James Wong Howe
William K. Howard
Producer
Art Direction
Cedric Gibbons
Lawrence Weingarten
Adaptation
Sam Spewack
Bella Spewack
William H. Daniels
Screenplay
P.J. Wolfson
Editor
Hugh Wynn
Assistant Director
Dolph Zimmer
George Oppenheimer
Original Music Composer
William Axt
Book
Herbert O. Yardley
Wardrobe Designer
Dolly Tree