- Herbert Marshall
- Alan Barclay
- Gertrude Michael
- Elsa Duranyi
- Lionel Atwill
- Ludwig
- Rod La Rocque
- Carl Schrottle
- Guy Bates Post
- Captain Bruce Minton
- Vallejo Gantner
- Vogel
- Torben Meyer
- Kraus
- Julia Faye
- Nurse
- Egon Brecher
- Schultz
- Frank Reicher
- Colonel Von Diegel
- Spencer Charters
- Herr Hoffer
- Oscar Apfel
- German General
- Hooper Atchley
- Varrell
- Frank Baker
- Minor Eolw
- Max Barwyn
- Baggage Man
- Eugene Borden
- Gendarme
- Agostino Borgato
- Elderly Spy
- A.S. 'Pop' Byron
- Chef
- Rita Carlyle
- Flower Woman
- Herbert Clifton
- Proprietor
- Phyllis Coghlan
- Elsa's Maid
- Carrie Daumery
- French Spy
- J. Gunnis Davis
- Newsboy
- Chico De Verdi
- Orchestra Leader
- George Eldredge
- English Officer Spy
- Leslie Francis
- English Spy
- Hans Fuerberg
- Guard
- Helen Giere
- Spy
- Creighton Hale
- English Artillery Officer
- Sam Harris
- Viennese Cafe Patron
- Hans Joby
- Private Chauffeur Spy
- Archdale Jones
- English Spy
- Colin Kenny
- English Artillery Officer
- Howard Lang
- Instructor
- Frank Mayo
- Minor Role
- G.L. McDonnell
- Minor Role
- Robert McKenzie
- Firechief in Cafe
- Charles McNaughton
- Stage Doorman
- Alex Melesh
- French Mailman Spy
- Frances Morris
- Waitress
- Edmund Mortimer
- Viennese Cafe Patron
- Dennis O'Keefe
- Viennese Cafe Patron
- John Picorri
- German Officer
- Tempe Pigott
- Old Woman
- John Rogers
- First Cabby
- Henry Roquemore
- Man with Cigarette at Customs
- Christian Rub
- Old Conductor
- Darwin Rudd
- Waiter
- Kai Schmidt
- Spy
- Harry Semels
- Spy
- Yorke Sherwood
- Second Cabby
- Bernard Siegel
- Stranger
- Pat Somerset
- Actor
- Colin Tapley
- English Artillery Officer
- Walter Thiele
- English Spy
- Howard Truesdale
- Chef
- John Van Eyck
- English Spy
- Alex Woloshin
- Orchestra Leader
