Richard Carlson
— Dr. Geoffrey Burton
Nancy Kelly
— Pat Lindsay
Albert Bassermann
— Dr. Storm
Miles Mander
— Professor Langer
Edward Gargan
— Officer Charlie Prescott
Adrian Morris
— Officer John Prescott
Martin Kosleck
— George Taylor
Walter Kingsford
— Heydt
Cy Kendall
— Dahlig
Nestor Paiva
— Grube
Oscar O'Shea
— Pa Prescott
Mary Gordon
— Ma Prescott
Arthur Loft
— Inspector Karns
Marion Martin
— Nurse
Clem Bevans
— Station Watchman
John Butler
— Detective Jenks
John Dilson
— Police Dr. Tracy
Kate MacKenna
— Cook at Gas Station
Gladys Blake
— Sales Clerk (Uncredited)
Nell Craig
— Sales Clerk (Uncredited)
Milton Kibbee
— Hotel Desk Clerk (Uncredited)
Eddie Acuff
— Garage Attendantt (Uncredited)
Stanley Blystone
— Policeman (Uncredited)
Wade Boteler
— O'Brien (Uncredited)
Eddie Dunn
— Police Sergeant (Uncredited)
Pat Flaherty
— Taxi Driver at Station (Uncredited)
J. Anthony Hughes
— Policeman at Garage (Uncredited)
Si Jenks
— Gateman at Sanitarium (Uncredited)
Paul McVey
— Cop on Small Town Street (Uncredited)
Ella Neal
— Telephone Operator (Uncredited)