Générique complet
Extortion
Scott Kolk
Larry Campbell (as Scott Colton)
Mary Russell
Betty Tisdelle
Thurston Hall
Prof. Tisdelle
Arthur Loft
Inspector Nat Corrigan
Gene Morgan
Flashlight
FW
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)
Ruth Hilliard
Babs
