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 Meller

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)