Donald Kilgore

Neil Hamilton

Acting

Paula Nyberg

Sheila Terry

Acting

Conductor Clark

Arthur Byron

Acting

Railway Detective McDuff

Guy Kibbee

Acting

Professor Axel Nyberg

Dudley Digges

Acting

Wallace Myton

Arthur Hohl

Acting

Robert 'Rusty' Griffith

Allen Jenkins

Acting

Train Guard Craft

Harold Huber

Acting

Train Guard Harry Burns

G. Pat Collins

Acting

Mr. Calhoun, Attorney

Robert Barrat

Acting

Dr. Harold Rolph

Vernon Steele

Acting

Johnson, Kilgore's Secretary

Ivan F. Simpson

Acting