Mystery of the White Room

Dr. Bob Clayton

Carole Dale

Lila Haines

Ann Stokes

Sergeant Macintosh Spencer (as Thomas Jackson)

Hank Manley

Dora Stanley

Dr. Norman Kennedy

Dr. Finley Morton

Dr. Amos Thornton

Tony

Dr. Donald Fox

Little Boy

The Coroner

Pete - the Fingerprint Man

Hospital Administrator