Hidden Power

Jack Holt

Dr. Garfield

Gertrude Michael

Virginia Garfield

Dickie Moore

Stevie Garfield

William B. Davidson

Foster

Henry Kolker

Weston

Helen Brown

Mrs. Morley

Marilyn Knowlden

Imogene

Harry Hayden

Downey

里吉斯·图米

Mayton

Holmes Herbert

Dr. Morley

Christian Rub

Doctor