James Morrison is an American retired professional wrestler and manager, better known by his ring name, 'James .J. Dillon'.

J.J. Dillon had an extensive wrestling career. He broke into wrestling at the age of 29, starting out in the early 1970’s as a referee transitioning into a wrestler and then a manager winning many championships and managing a variety of wrestlers throughout many different territories around the country. He made his Madison Square Garden debut on April 23, 1984 when he challenged Tito Santana for the WWE Intercontinental Heavyweight Championship, losing by pinfall after a flying forearm by Santana.

He is most remembered in pro wrestling as a manager. He guided many wrestlers to singles and tag-team titles in the NWA. Dillon, who became manager of Tully Blanchard, achieved his greatest success as the manager of the Four Horsemen which consisted of "Nature Boy" Ric Flair, Blanchard, Arn Anderson , Ole Anderson, Lex Luger and Barry Windham. After leaving WCW in February 1989, Dillon served as a front office executive for WWE until 1997. On April 21, 1997, he returned to WCW as an on-camera commissioner, a position which lasted until fall 1998. In 2003, Dillon had a short stint as an NWA representative in TNA.

In 2009, he made a one-night appearance at Deaf Wrestlefest 2009 to team with "Beef Stew" Lou Marconi and "Handsome" Frank Staletto in a six-man tag team match against "Franchise" Shane Douglas, Dominic Denucci and Cody Michaels.

On December 29, 2019, Dillon joined the Board of Directors of the International Pro Wrestling Hall of Fame. On March 3, 2021, Dillon returned to TNT to act as manager for Tully Blanchard on an episode of AEW Dynamite.