Ruth - The Girl Detective
Ruth Roland
Marguerite Wheeler
Cleo Ridgely
Bertha - The Girl Detective
Marin Sais
Chief of Police Harding
Edward Clisbee
(Episode #1, 2, etc.)
Paul Hurst
The Girl Detective's Assistant
R. Henry Grey
Deacon - the Multimillionaire
William H. West
James W. Horne
Jarvis - Head of the F.O.B.A.
Thomas G. Lingham
Director
Writer
Hamilton Smith