Sean Michael Waltman (born July 13, 1972) is an American professional wrestler. He wrestled for the World Wrestling Federation (WWF, now called WWE) under the ring names 1-2-3 Kid and X-Pac intermittently between 1993 and 2002, World Championship Wrestling (WCW) as Syxx, and Total Nonstop Action Wrestling (TNA) as Syxx-Pac and Sean Waltman. He is currently signed with WWE working in their Legends program. Waltman has won a dozen championships between WWE, WCW, and TNA; the majority were cruiserweight and tag team titles.

On September 16, 1996, Waltman was shown sitting in the front row for a live episode of Nitro. Later that night, he stood and used a remote control to release New World Order (nWo) propaganda from the ceiling, revealing himself as the newest member of the recently formed faction. He was called Syxx, because he was the sixth member of the nWo, and six is the sum of numbers in "1-2-3 Kid".  In his first major angle, Syxx stole Eddie Guerrero's WCW United States Heavyweight Championship belt, leading to a ladder match for the title at Souled Out in January 1997, which Syxx lost. The next month, at SuperBrawl VII, Syxx pinned Dean Malenko for the WCW Cruiserweight Championship, after hitting him with the title belt, which he had grabbed from Guerrero at ringside. In June 1997, he lost the championship to Chris Jericho at a webcast house show in Los Angeles, California, minutes after successfully defending against Rey Mysterio, Jr.  During a feud with Ric Flair, and a loss to him at Road Wild in August, Syxx disparagingly portrayed Flair as part of an nWo segment parodying his Four Horsemen group. This segment led to a WarGames match at Fall Brawl, where Syxx, Kevin Nash, Buff Bagwell and Konnan defeated The Four Horsemen (Flair, Steve McMichael, Chris Benoit and Curt Hennig) after Hennig betrayed the Horsemen and joined the nWo. In mid-1997, the nWo invoked "Wolfpac Rules", allowing Syxx to replace the injured Kevin Nash in defending the WCW World Tag Team Championship with Scott Hall. On October 13, 1997, Hall and Syxx lost the title to The Steiner Brothers (Rick and Scott).  In October, a neck injury sidelined Waltman from wrestling, but he continued to appear on TV for several weeks after. While later recuperating at home, he was fired via Federal Express by WCW President Eric Bischoff. Waltman claims this was a power play aimed at his friends Hall and Nash, whose backstage influence was felt as a threat. Bischoff later said Waltman was a competent performer when sober, but sober periods were "few and far between", and "in many ways, Sean was lucky to even have a job".

Who took Waltman under their wing?