William H. West

The Vivisectionist

as Dr. Jardine - a Vivisectionist

The Girl Detective

as Rumson / Strumfsky / Isaacson / Fairfax / Marsden / Rankin / Deacon / Merriman / Craven / Kerrigan / Brandon / Dr. Barry

The Chief of Police

as John Franklin

The Quicksands

as General Fields

The Invaders

as William Sawyer

The Mountain Witch

as Jacob Drake

The Boomerang

as Simon Watson - a Drug Manufacturer

The Driver Of The Deadwood Coach

as Driver of the Deadwood Coach

The Organ Grinder

as Pasquale