Gladiator (Kallark)

Gladiator (Kallark) is a fictional character appearing in American comic books published by Marvel Comics. He first appeared in The X-Men #107 (Oct. 1977) and was created by writer Chris Claremont and artist Dave Cockrum. The character is a Strontian, and like others of his race has the capacity for great strength and various superpowers, but can only use them when he is completely devoted to a purpose; his abilities vary in accordance with his level of confidence. He was born on Strontia, which is part of the Shi'ar Empire and he is the leader of their Imperial Guard. He was also a member of the Annihilators, Dark Guardians, and Guardians of the Galaxy.