Ruth Roland
Ruth, The Girl Detective
Marin Sais
Bertha, the Girl Detective
Cleo Ridgely
Kate Rumson / Mrs. Rodger Hastings / Olga / Queenie / Molly Moran / Jean, The Girl Detective
Arthur Shirley
John Talcott
Paul Hurst
Blair / Thompson / Michaels / Snake Henely / Mike Donegal / Bat Dorgan / Kelly / Dalton / Blake
Ollie Kirby
Mrs. Churchill / Emily Wharton / Mary Kerrigan / Marie / Mrs. Winslow / Mabel Keene / Mrs. Cluett
Thomas G. Lingham
George Warren / Machson / Doran / Rat Hogan / Ripert Bladeau / Jarvis / Breslow / Jeffries / Rillando / Dr. Keene
R. Henry Grey
Rodger Hastings / Harry Warrington
James W. Horne
Blaney