as Jack Cameron

as Donald Duffield - Harry's Rival

as Dan Bell

as Pete Krell

as Jack Shields

as Sea Captain

as (uncredited)

as Big Strength Machine Contestant (uncredited)

as Big-Boy

as Bergerin

as Murphy

as The Balkan Prisoner / Shem

as Big Boyle

as Clem Allison

as Jeff Hoades

as Juryman

as Ted Grant

as Jamison - the smelter

as Higgins the Butler

as Captain of Guards

as Fireman

as Cocky

as Prof. Saenger

as Miner

as Denman

as Carter

as Blanco Johnson