Neil Hamilton

Donald Kilgore

Sheila Terry

Paula Nyberg

Arthur Byron

Conductor Clark

Guy Kibbee

Railway Detective McDuff

Dudley Digges

Professor Axel Nyberg

Arthur Hohl

Wallace Myton

Allen Jenkins

Robert 'Rusty' Griffith

Harold Huber

Train Guard Craft

G. Pat Collins

Train Guard Harry Burns

Robert Barrat

Mr. Calhoun, Attorney

Vernon Steele

Dr. Harold Rolph

Ivan F. Simpson

Johnson, Kilgore's Secretary

Ray Enright