6 WWE Attitude Era Superstars and 1 WCW Legend wrestling in AEW  

#3 Billy Gunn

'The One' Billy Gunn was a WWE mainstay for several years. His tenure in the company is famous thanks to his involvement with the D-Generation X. While Gunn was very active during the Attitude Era, it was in tag team wrestling where he enjoyed his most success.

Gunn is an 11-time WWE World Tag Team Champion; 6 of those were with Road Dogg. Gunn won the King of the Ring in 1999 and is a former WWE Intercontinental Champion and 2-time WWE Hardcore Champion. Given his experience, it's no wonder that he was hired as a backstage producer/coach while serving as an active in-ring performer. In interviews, Gunn mentioned that he signed with AEW for Cody and hasn't looked back since.

Gunn has been wrestling on AEW Dark with his two sons, Austin and Colton. The team seemingly turned heel when Billy Gunn laid out Paul Wight on Dynamite.

It'll certainly be interesting what plans AEW has for The Gunn Club in the future.