Extortion

Scott Kolk

Larry Campbell (as Scott Colton)

Mary Russell

Betty Tisdelle

Thurston Hall

Prof. Tisdelle

Arthur Loft

Inspector Nat Corrigan

吉恩·摩尔根

Flashlight

Frank C. Wilson

Craig Banning

安·多兰

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)

Ruth Hilliard

Babs