Sean Michael Waltman is an American professional wrestler. He wrestled for the World Wrestling Federation under the ring names 1?2?3 Kid and X-Pac intermittently between 1993 and 2002, World Championship Wrestling as Syxx, and Total Nonstop Action Wrestling as Syxx-Pac and Sean Waltman.
Waltman has won a dozen championships between WWE, WCW, and TNA; the majority were cruiserweight and tag team titles. He is the only wrestler to have held the TNA X Division Championship, the WCW Cruiserweight Championship and the WWF Light Heavyweight Championship; he also held the WCW Cruiserweight and WWF Light Heavyweight titles simultaneously.
He was part of The Kliq, a group of wrestlers known for their strong backstage influence on WWF storylines in the mid-1990s.