The actor, who left the series in 2020, came back to play his beloved character Dr. Spencer Reid in Season 18, Episode 3, ...

His return had been teased months earlier without giving away the tragic context, and according to A.J. Cook, she was the one ...

After the LaMontagne patriarch's sudden death in Criminal Minds: Evolution season 3, the show is trying to make this BAU ...

Evolution brought back Spencer Reid in an episode that saw JJ facing having to say goodbye to her husband, Will.