Cast
Edward Hearn
Jed Williams
Paul Weigel
Oil Co. Director Larribee
Olive Carey
Nurse Lewis
Bob Kortman
Marno
Dick Dickinson
Rawlins
Boris Karloff
The Voice (voice)
Rex
Rex
Harry Carey
'Happy' Cardigan
Tom Dugan
Oil Co. Director Warren
Frank Brownlee
Oil Co. Director Bishop
Al Taylor
Sheriff of Slocum / Deputy Thompson / Henchman Dave / Horseman
Bob Walker
Oil Co. Director Allen
Frankie Darro
Jimmie Williams
Yakima Canutt
Yak
Lafe McKee
T.J. Hornbeck
Pete Morrison
Pete Morrison
Dick Hatton
James "Dodger" Valenti
Edwina Booth
Caroline Hall
William Desmond
Milesburg Sheriff
Philo McCullough
Stevens
Joe Bonomo
Stuffy