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)
Dick Rich
Guard (Uncredited)
Harry Tenbrook
Truck Driver (Uncredited)
William Wright
Intern (Uncredited)
F. Hugh Herbert
Writer
Robert Siodmak
Director
Sol C. Siegel
Producer
Jay Dratler
Writer
Arthur P. Schmidt
Editor
John F. Seitz
Director of Photography
Sidney Sheldon
Story
Hans Dreier
Art Direction
Ben Roberts
Story
Haldane Douglas
Art Direction
Colbert Clark
Associate Producer
Gene Merritt
Sound Recordist
Ernst Toch
Original Music Composer
John Cope
Sound Recordist
Gerard Carbonara
Original Music Composer
John Leipold
Original Music Composer