Lee Tracy
Nick Burton
Linda Hayes
Helen Hewitt
Raymond Walburn
Bruce Vander
Morgan Conway
James Brent
Truman Bradley
Dr. William 'Bill' Collins
Virginia Vale
May Thomas
Cliff Edwards
Happy
Paul Guilfoyle
Ox
Thurston Hall
Harold Kellogg
Chester Clute
Sidney Keats
Shemp Howard
Professor
Horace McMahon
Sylvester Odgen 'SOS' Schofield (as Horace MacMahon)
Thomas E. Jackson
Warden Tom Hammond
Elliott Sullivan
Tony Brody
Selmer Jackson
Dr. Harry Lindsay
Vinton Hayworth
'Windy' Windsor (as Jack Arnold)
Brooks Benedict
Reporter (uncredited)
Leo Cleary
Deputy Taking Collins to Prison (uncredited)
Richard Cramer
Guard Finding Keats' Menu (uncredited)
Hal K. Dawson
Mike, a Reporter (uncredited)
Joe Devlin
Vince Connell (uncredited)
John Dilson
Observer at Train Station (uncredited)
Charlie Hall
Cockney Convict Heckler (uncredited)
Kenneth Harlan
Jerry Connell (uncredited)
Eddie Hart
Reporter (uncredited)
Dell Henderson
Dell, Deputy Taking Vander to Prison (uncredited)
Donald Kerr
Prison Library Clerk (uncredited)
Roger Laswell
Guard (uncredited)
Grace Lenard
Marie Brody (uncredited)
Sam Lufkin
Convict (uncredited)
George Magrill
Guard in Yard (uncredited)
Herman Marks
Convict Taunting New Prisoners (uncredited)
Larry McGrath
Visitor's Room Guard (uncredited)
Donald McNamee
Reporter (uncredited)
Frank Mills
Convict Chef Dominick (uncredited)
Bruce Mitchell
Train Conductor (uncredited)
Frank O'Connor
Frank, Prison Guard (uncredited)
Cy Schindell
Red Vernon (uncredited)
John Sheehan
Deputy Taking Keats & Kellogg to Prison (uncredited)
Sammy Stein
Mess Hall Guard (uncredited)
Harry Strang
Convict (uncredited)
Grady Sutton
Jock, Vander's Nephew (uncredited)
Chester Tallman
Guard (uncredited)
Anthony Warde
Max, Convict (uncredited)
Carole Wayne
Wife of SOS (uncredited)
Charles C. Wilson
R.J. Reynolds, Sunday Editor (uncredited)
Ray McCarey
Director
Lynn Root
Screenplay
Frank Fenton
Screenplay
Martin Mooney
Story
Howard Benedict
Producer
Theron Warth
Editor
Van Nest Polglase
Art Direction
Vernon L. Walker
Special Effects
Renié
Costume Supervisor
Harry J. Wild
Director of Photography
Roy Webb
Original Music Composer
Richard Van Hessen
Sound Recordist
Lee S. Marcus
Executive Producer