William Powell
Philo Vance
James Hall
Jimmie Spottswoode
Louise Brooks
The Canary
Jean Arthur
Alice LaFosse
Charles Lane
Charles Spottswoode
Lawrence Grant
John Cleaver
Gustav von Seyffertitz
Dr. Ambrose Lindquist
E.H. Calvert
District Attorney Markham (as Captain E. H. Calvert)
Eugene Pallette
Sergeant Heath
Ned Sparks
Tony Skeel
Louis John Bartels
Louis Mannix
Tim Adair
George Y. Harvey (uncredited)
Margaret Livingston
Body Double for Louise Brooks (uncredited)
Oscar Smith
Stuttering Hallboy (uncredited)
