Another "Community" alum is heading to "Dr. Ken".

"Breaking Bad"/"Better Call Saul" star Jonathan Banks will guest-star on the March 10th episode as Dr. Erwin, Ken’s toughest professor from his residency days who comes to the doc for medical treatment.

http://tvline.com/2017/02/03/david-walton-cast-9j-9k-9l-cbs-comedy-pilot/