A mysterious master criminal known as The Voice plots with his gang to sabotage the Milesburg Oil Company, but the rightful heir has a secret army of her own to protect her rights.
Directed by
Ford Beebe, B. Reeves Eason
Tom Dugan
Oil Co. Director Warren
Edward Hearn
Jed Williams
Frankie Darro
Jimmie Williams
Boris Karloff
The Voice (voice)
Bob Kortman
Marno
Lafe McKee
T.J. Hornbeck
Harry Carey
'Happy' Cardigan
Paul Weigel
Oil Co. Director Larribee
Olive Carey
Nurse Lewis
Edwina Booth
Caroline Hall
Cliff Lyons
Philo McCullough
Stevens
Yakima Canutt
Yak
Pete Morrison
Pete Morrison
Bob Walker
Oil Co. Director Allen
Al Taylor
Sheriff of Slocum / Deputy Thompson / Henchman Dave / Horseman