Prince Peter Karagin, aka Peter Teranda
Nelson Eddy
Lydia Marakova
Ilona Massey
Ramensky
Frederick Worlock
Leo Proplinski
Abner Biberman
Sergei Pavloff
Arthur W. Cernitz
Lieutenant Nikitin
Roland Varno
Slaski
George Tobias
Anton
Paul Sutton
Capt. Testoff
Willy Castello
Prince Morodin
Paul Irving
Jeanette Sibirsky
Mildred Shay
Mrs. Danchenoff
Alma Kruger
Nicki Popoff
Charles Ruggles
Natalya Petrovna
Zeffie Tilbury
(uncredited)
Demetrius Alexis
Cafe Girl (uncredited)
Dorothy Ates
Baritone (uncredited)
Douglas Beattie
John Bleifer
Soldier (uncredited)
Charles Brokaw
Crying Soldier (uncredited)
Rand Brooks
Maurice Cass
Feodor Chaliapin Jr.
Irene Coleman
Ivan Danchenoff
Frank Morgan
Alexis Davidoff
Singer (uncredited)
Dick Dennis
Al Ferguson
Violinist (uncredited)
Jack George
Boris Glagolin
John Gubbins
Eddie Hart
John Holland
Batoff (uncredited)
Charles Judels
Ilia Khmara
Professor Marakov
Lionel Atwill
Harry Lamont
David Laughlin
Jack Luden
Michael Mark
Art Miles
Policeman
Paul Newlan
Sultan (uncredited)
Sigurd Nilssen
Ed Payson
Irra Petina
Doorman (uncredited)
Lee Phelps
General Karagin
C. Aubrey Smith
Rex Post
Ivan (uncredited)
Frank Puglia
Constantine Romanoff
William Royle
Hector V. Sarno
Earl Seaman
Harry Semels
Marla Shelton
Lily Allison (uncredited)
Florence Shirley
Robert R. Stephenson
Masha
Joyce Compton
Girl (uncredited)
Kay Sutton
Dirk Thane
Wilbur Allison (uncredited)
Andrew Tombes
Corporal (uncredited)
Monte Vandergrift
Ellinor Vanderveer
Danchenoff's Secretary (uncredited)
Ernö Verebes
George Volk
Russian Girl (uncredited)
Marjorie Woodworth
Harry Worth
Dimitri Marakov
Dalies Frantz
Lieutenant Smirnoff
Phillip Terry
Michael Sibirsky
Walter Woolf King
Director
Reinhold Schünzel
Director of Photography
Karl Freund
Original Music Composer
Herbert Stothart
Costume Design
Adrian
Set Decoration
Edwin B. Willis
Screenplay
Jacques Deval
Art Direction
Cedric Gibbons
Charles Bennett
Joseph Ruttenberg
Editor
George Boemler
Producer
Lawrence Weingarten
Theatre Play
Eric Maschwitz
Leon Gordon