Roland Winters

Charlie Chan

Wanda McKay

Evelyn Manning

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

Evelyn Brent

Sister Teresa

Ralph Dunn

Jim. Driscoll

Lois Austin

Mrs. Margaret Driscoll

Forrest Taylor

Mr. Manning

Lee 'Lasses' White

Pete

Arthur Berkeley

Townsman (uncredited)

Edmund Cobb

Miner (uncredited)

Geraldine Cobb

Girl in Riding Clothes (uncredited)

Babs Cox

Bathing Girl (uncredited)

Sam Flint

Dr. Groves (uncredited)

Lee Tong Foo

Wong Fai (uncredited)

Michael Gaddis

Pursuer (uncredited)

Jack Gargan

Man in the Darkness (voice) (uncredited)

Mary Ann Hawkins

Bathing Girl (uncredited)

Shep Houghton

Dude Ranch Guest (uncredited)

John Merton

Miner (uncredited)

Suzanne Ridgway

Dude Ranch Guest (uncredited)

Martin Strader

Henchman (uncredited)