Philo Vance
Lorena Blendon Simms
Alexis Karnoff
Stella Blendon
Virginia Berneaux
Larry Blendon
George Hullman
Maggie McCarthy / Choo-Choo Divine
Helen Varney Blendon
The Policeman
Mary
Choo-Choo's Bodyguard (Uncredited)
Police Lieutenant Mullard (Uncredited)
Dr. Campbell (Uncredited)
Agatha Cowle (Uncredited)
Greg Simms (Uncredited)