22. Rey Mysterio

Originally a luchador, Rey Mysterio made his WCW debut and challenged Dean Malenko for the Cruiserweight Championship. Fans were thrilled by his acrobatics and colorful attire. He went on to develop rivalries with many, including Chris Jericho, Psychosis and Eddie Guerrero. These rivalries helped Mysterio become the face of the Cruiserweight division and a five-time champion.

Mysterio ventured out of his division and somehow managed to beat larger challengers, too, such as Kevin Nash and Scott Norton. Once, he even challenged Ric Flair for the WCW World Title. Mysterio became part of both Filthy Animals and The No Limit Soldiers and earned the WCW Tag Team Titles twice before the end of WCW.