Rey Mysterio was a professional wrestler for WCW who made his wrestling debut in Mexico. He dropped out of school to become a pro wrestler in Mexico. He is the nephew of wrestler Rey Misterio. He had a brief role (unmasked) as himself in Ready 2 Rumble.

Pinned Kevin Nash, Scott Norton and Bam Bam Bigelow and was known as the Giant Killer, because all of those wrestlers weighed over 315 pounds at the time.