Nick Burton

Helen Hewitt

Bruce Vander

James Brent

Dr. William 'Bill' Collins

May Thomas

Happy

Ox

Harold Kellogg

Sidney Keats

Professor

Sylvester Odgen 'SOS' Schofield (as Horace MacMahon)

Warden Tom Hammond

Tony Brody

Dr. Harry Lindsay

'Windy' Windsor (as Jack Arnold)

Reporter (uncredited)

Deputy Taking Collins to Prison (uncredited)

Guard Finding Keats' Menu (uncredited)

Mike, a Reporter (uncredited)

Vince Connell (uncredited)

Observer at Train Station (uncredited)

Cockney Convict Heckler (uncredited)

Jerry Connell (uncredited)

Reporter (uncredited)

Dell, Deputy Taking Vander to Prison (uncredited)

Prison Library Clerk (uncredited)

Guard (uncredited)

Marie Brody (uncredited)

Convict (uncredited)

Guard in Yard (uncredited)

Convict Taunting New Prisoners (uncredited)

Visitor's Room Guard (uncredited)

Reporter (uncredited)

Convict Chef Dominick (uncredited)

Train Conductor (uncredited)

Frank, Prison Guard (uncredited)

Red Vernon (uncredited)

Deputy Taking Keats & Kellogg to Prison (uncredited)

Mess Hall Guard (uncredited)

Convict (uncredited)

Jock, Vander's Nephew (uncredited)

Guard (uncredited)

Max, Convict (uncredited)

Wife of SOS (uncredited)

R.J. Reynolds, Sunday Editor (uncredited)