https://www.cbr.com/why-gideon-left-criminal-mind/

Mandy Patinkin starred as FBI profiler Jason Gideon on Criminal Minds (https://www.cbr.com/tag/criminal-minds/), but he only appeared in the first three seasons.

What Happened To Mandy Patinkin's Jason Gideon On Criminal Minds? (https://www.looper.com/1548993/mandy-patinkin-jason-gideon-criminal-minds-what-happened/)

Mandy Patinkin's Jason Gideon was an iconic character on CBS' "Criminal Minds." Some longtime fans may have forgotten how the character was written off.