Richard Carlson as Dr. Geoffrey Burton

Nancy Kelly as Pat Lindsay

Albert Bassermann as Dr. Storm

Miles Mander as Professor Langer

Edward Gargan as Officer Charlie Prescott

Adrian Morris as Officer John Prescott

Martin Kosleck as George Taylor

Walter Kingsford as Heydt

Cy Kendall as Dahlig

Nestor Paiva as Grube

Oscar O'Shea as Pa Prescott

Mary Gordon as Ma Prescott

Arthur Loft as Inspector Karns

Marion Martin as Nurse

Clem Bevans as Station Watchman

John Butler as Detective Jenks

John Dilson as Police Dr. Tracy

Kate MacKenna as Cook at Gas Station

Gladys Blake as Sales Clerk (Uncredited)

Nell Craig as Sales Clerk (Uncredited)

Milton Kibbee as Hotel Desk Clerk (Uncredited)

Eddie Acuff as Garage Attendantt (Uncredited)

Stanley Blystone as Policeman (Uncredited)

Wade Boteler as O'Brien (Uncredited)

Eddie Dunn as Police Sergeant (Uncredited)

Pat Flaherty as Taxi Driver at Station (Uncredited)

J. Anthony Hughes as Policeman at Garage (Uncredited)

Si Jenks as Gateman at Sanitarium (Uncredited)

Paul McVey as Cop on Small Town Street (Uncredited)

Ella Neal as Telephone Operator (Uncredited)

Dick Rich as Guard (Uncredited)

Harry Tenbrook as Truck Driver (Uncredited)

William Wright as Intern (Uncredited)