Convict 13

Buster Keaton

Golfer Turned Prisoner, Guard

Sybil Seely

Socialite, Warden's Daughter

Joe Roberts

The Crazed Prisoner

Edward F. Cline

Hangman

Joe Keaton

Prisoner

Harry Keaton

Little guard that Big Joe knocks out (uncredited)

Louise Keaton

(uncredited)