Danielle Breton / Dominique Blanchion
Grace Collier
Joseph Larch
Emil Breton (as Bill Finley)
Phillip Woode
Arthur McLennen
Mrs. Peyson Collier
Detective Kelly
Lobster child (uncredited)
Giant (uncredited)
Louise Wilanski (uncredited)
African Room Waiter (uncredited)
Arlene (uncredited)
Elaine D'Anna (uncredited)
Guard (uncredited)
Druggist (uncredited)
Extra (uncredited)
Hospital Attendant (uncredited)