Between 2002 and 2004, Dux made several appearances with World Wrestling Entertainment on Heat and Velocity. He appeared in an angle on an episode of SmackDown in 2003 that saw him pose as a security guard who was attacked by The Undertaker. On March 31, 2004, Dux lost to Mark Jindrak on an episode of Velocity. In 2005, he wrestled in dark matches at Raw and SmackDown tapings. On May 28, 2007, Dux made an appearance for WWE in match for Saturday Night's Main Event XXXIV, in which he was defeated by Chuck Palumbo.
On June 8, 2014, Dux returned to WWE for a dark match prior to the Friday Night SmackDown in Ottawa, Ontario, Canada, where he was defeated by Sin Cara.
Dux was named as a participant in the Cruiserweight Classic in the spring of 2016. The tournament kicked off on June 23, with Dux being eliminated in his first round match by Zack Sabre, Jr..