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)

Scott Darling

Writer

William Beaudine

Director

Earl Derr Biggers

Characters

Grant Tucker

Grip

James S. Burkett

Producer

William A. Sickner

Director of Photography

Ace Herman

Editor

Web Overlander

Makeup Artist

Jules V. Levy

Script Supervisor

John K. Kean

Sound

Otho Lovering

Supervising Editor

John J. Martin

Camera Operator

Allen K. Wood

Production Manager

Franklin Hansen

Sound

Dave Milton

Art Direction

Raymond Boltz Jr.

Set Decoration

Lela Chambers

Hairstylist