Dean is a fanboy of the show Dr. Sexy, M.D., with an arguable crush on Dr. Sexy.
Dr. Sexy, M.D. is a send-up of Grey’s Anatomy,where the sexy doctor is nicknamed McDreamy.
McDreamy is played by Patrick Dempsey.
Patrick Dempsey and Jensen Ackles played lovers in the 2001 mini-series, Blonde.
The kicker? Patrick’s character was named “Cas.”