Jason Gideon Returned to 'Criminal Minds' for the Series Finale — Well, Sort Of. ... Gideon's spirit, who was reminiscent of the investigator in his early career, guided Rossi with advice about a case. The character's return — though unconventional — created further closure during the finale.

Does Jason Gideon ever return?

In Criminal Minds' pilot, "Extreme Aggressor," Gideon returned to the BAU following a six-month medical leave due to the post-traumatic distress he suffered when a bomber he was profiling killed six agents under Gideon's supervision.

What episode does Jason Gideon come back?

Jason Gideon was a recurring character of Criminal Minds up until Season 3. The special agent and ambitious behavioural scientist made a brief appearance in Season 10, in "Nelson's Sparrow."