Showdown Superman's reputation is tarnished when a crook begins committing crimes in a Superman costume. Details Casts Galleries Posters Title Showdown Release Date 1942-10-16 Runtime 00 Hours 08 Minutes Genres Animation Action Production Companies Famous Studios Production Countries United States of America Joan Alexander... Lois Lane (voice) (uncred... Jackson Beck... Boss (voice) (uncredited)... Bud Collyer... Superman / Clark Kent (vo... Jack Mercer... Office Boy / Fake Superma... Julian Noa... Narrator (voice) (uncredi... Original Size (1920x1080) Original Size (680x1000) Original Size (500x750) Original Size (1000x1500)