Matthew Gray Gubler's highly-anticipated return to Criminal Minds came in Evolutions season 3, episode 3, but his future with the BAU is uncertain.

Evolution's latest guest star talks about returning to the series after its major rebrand from the original series back in 2022.

His return had been teased months earlier without giving away the tragic context, and according to A.J. Cook, she was the one who reached out to her former co-star to see if he could come back after conversations with showrunner Erica Messer. On the subject of what it was like to be back on set with Gubler, Cook told EW: