The character of Agent Aaron Hotchner, played by Thomas Gibson, was written out of the television series Criminal Minds in season 11. He was replaced by Agent Stephen Walker, played by Damon Gupton.
Hotchner's departure was due to Gibson's dismissal from the show after an altercation with a writer.
Walker's character was introduced as a seasoned FBI agent with a background in behavioral analysis. He joined the BAU team as a senior agent, bringing his expertise and experience to the team.
While Hotchner's departure was a significant change for the show, Walker's arrival brought a fresh perspective and new dynamics to the team.
