John St. Polis

Professor (uncredited)

Simkins

Doc Hunter

Joseph Manners

Minor Role (uncredited)

Davis

Superintendent Keene

Carl Roemer

Townsman

Pat Doyle

Roger Morton

Crane

Caleb Delthern

Chandler Elliott

Coxon

Doctor

Mr. Abrams

Sheriff Sam Corwin

Jim

Dr. Munro

Opera Conductor (uncredited)

Jerome T. Shelby

Prof. Trowbridge

Attorney General Davis (uncredited)

Defense attorney

John J. Martin

French Police Investigator (uncredited)

Governor

Grover Cromwell

Colonel Charles Ormsby