as Jeff Hoades
as Clem Allison
as The Balkan Prisoner / Shem
as Dan Bell
as Big Strength Machine Contestant (uncredited)
as Jack Cameron
as Higgins the Butler
as Big-Boy
as Donald Duffield - Harry's Rival
as Miner (uncredited)
as Ted Grant
as Jamison - the smelter
as Bergerin
as Carter
as (uncredited)
as Juryman
as Fireman
as Murphy
as Pete Krell
as Cocky
as Captain of Guards
as Sea Captain
as Prof. Saenger
as Denman
as Big Boyle
as Jack Shields
