|Abilities:|| Superhuman strength, speed, stamina, agility, reflexes, and durability; |
Gladiator, real name Kallark, is the Captain of the Shi'ar Republic's Imperial Guard.
Kallark is a member of the Strontian race, and was born under Shi'ar rule. Due to his species sharing comparable powers as the Kryptonians, they were indoctrinated from birth to be loyal to the Shi'ar. In time, Kallark was named the Praetor (leader) of the Shi'ar Imperial Guard.
In Marvel Comics, Gladiator is considered to be inspired by Superman, though he also might be inspired by Mon-El from the Legion of Super-Heroes (most of the Imperial Guard members created by Dave Cockrum were based on Legionnaires). The name Kallark is a combination of "Kal" and "Clark", the two aliases of Superman.