Groucho Marx character Ronald Kornblow
Harpo Marx character Rusty
Chico Marx character Corbaccio
Charles Drake character Lt. Pierre Delmar
Lois Collier character Annette
Sig Ruman character Count Pfefferman / Heinrich Stubel
Lisette Verea character Beatrice Rheiner
Lewis L. Russell character Governor
Dan Seymour character Prefect of Police
Frederick Giermann character Kurt
Harro Mellor character Emile
David Hoffman character Spy
Paul Harvey character Mr. Smythe
Ruth Roman character Harem Girl (uncredited)
Arthur Tovey character Military Man in Restaurant (uncredited)