William Powell
饰 Philo Vance
Florence Eldridge
饰 Sibella Greene
Ullrich Haupt
饰 Dr. Von Blon
Eugene Pallette
饰 Sergeant Heath
E.H. Calvert
饰 John F. X. Markham
Gertrude Norman
饰 Mrs. Tobias Greene
Lowell Drew
饰 Chester Greene
Morgan Farley
饰 Rex Greene
Augusta Burmeister
饰 Mrs. Mannheim
Veda Buckland
饰 Nurse (uncredited)
Shep Camp
饰 Medical Examiner (uncredited)
Charles E. Evans
饰 Lawyer Canon (uncredited)
Helena Phillips Evans
饰 Miss O'Brien (uncredited)
Mildred Golden
饰 Barton (uncredited)
Harry Strang
饰 Policeman (uncredited)
