The Mad Doctor

Dr. George Sebastian / Dr. Langamann

Linda Booth

Gil Sawyer

Louise Watkins (as Barbara Allen [Vera Vague])

Dr. Charles Downer

Maurice Gretz

Winnie

Lawrence Watkins

Furber (Uncredited)

Girl at Charity Bazaar (Uncredited)

Intern (Uncredited)

Mickey Barnes (Uncredited)

Elevator Operator (Uncredited)

Librarian (Uncredited)

Police Officer at Train Station (Uncredited)

Ticket Clerk (Uncredited)

Hotel Clerk (Uncredited)

Intern (Uncredited)

Officer Riley (Uncredited)

Butler (Uncredited)

Woman at Charity Bazaar (Uncredited)

Hostess at Charity Bazaar (Uncredited)

Dr. Hatch (Uncredited)

Cab Driver (Uncredited)