Cast
Sam Flint
Dr. Groves (uncredited)
Mantan Moreland
Birmingham Brown
Victor Sen Yung
Tommy Chan (as Victor Sen Young)
Bruce Kellogg
Talbot Bartlett
Tim Ryan
Vincent O'Brien / Lt. Mike Ruark
Lee 'Lasses' White
Pete
Suzanne Ridgway
Dude Ranch Guest (uncredited)
Ralph Dunn
Jim. Driscoll
John Merton
Miner (uncredited)
Wanda McKay
Evelyn Manning
Evelyn Brent
Sister Teresa
Forrest Taylor
Mr. Manning
Edmund Cobb
Miner (uncredited)
Jack Gargan
Man in the Darkness (voice) (uncredited)
Shep Houghton
Dude Ranch Guest (uncredited)
Roland Winters
Charlie Chan