He's in comics more than Galactus. lolHere is one of the few times Gladiator lost his confidence enough to be defeated by Cannonball.
He's been part of the X-Men universe for decades. Any time they venture into space and meet the Shi'ar. Creators: Chris Claremont, Dave CockrumAlter ego: KallarkFirst appearance: The X-Men #107 (Oct. 1977)Species: StrontianHe's also fought with Thor, the Fantastic Four, Nova, etc...