Cast
Carroll Nye
John E. Sprigg
Clarence Geldart
John F.-X. Markham
Alec B. Francis
Professor Bertrand Dillard
George F. Marion
Adolph Drukker
Sidney Bracey
Pyne (as Sydney Bracey)
Basil Rathbone
Philo Vance
Roland Young
Sigurd 'Erik' Arnesson
Bodil Rosing
Grete Menzel
James Donlan
Ernest Heath
Marcia Mae Jones
Hungry Child in Park (uncredited)
Leila Hyams
Belle Dillard
Delmer Daves
Raymond Sperling
Nellie Bly Baker
Beedle