Cast 15
Basil Rathbone
Philo Vance
Leila Hyams
Belle Dillard
Roland Young
Sigurd 'Erik' Arnesson
Alec B. Francis
Professor Bertrand Dillard
George F. Marion
Adolph Drukker
Zelda Sears
Mrs. Otto Drukker
Bodil Rosing
Grete Menzel
Carroll Nye
John E. Sprigg
Charles Quatermaine
John Pardee (as Charles Quartermaine)
James Donlan
Ernest Heath
Sidney Bracey
Pyne (as Sydney Bracey)
Clarence Geldart
John F.-X. Markham
Delmer Daves
Raymond Sperling
Nellie Bly Baker
Beedle
Marcia Mae Jones
Hungry Child in Park (uncredited)
Crew 9
S.S. Van Dine
Novel
Lenore J. Coffee
Writer
Nick Grindé
Director
David Burton
Director
Henrietta Frazer
Costume Design
William LeVanway
Editor
Roy F. Overbaugh
Director of Photography
Cedric Gibbons
Art Direction
Donald MacKenzie
Sound Director