Extortion

Scott Kolk

Larry Campbell (as Scott Colton)

Mary Russell

Betty Tisdelle

Thurston Hall

Prof. Tisdelle

Arthur Loft

Inspector Nat Corrigan

Gene Morgan

Flashlight

Frank C. Wilson

Craig Banning

Ann Doran

Margie Blake

J. Farrell MacDonald

Coach Pearson

George Offerman, Jr.

Soupy Pettie

Nick Lukats

Roy Jennings

Roland Got

Kong Lee

Albert Dekker

Jeffrey Thompson (as Albert Van Dekker)