By Dan Snierson
Updated October 10, 2013 at 04:41 PM EDT
  • TV Show

We are only two episodes away from the season 5 finale of Childrens Hospital, which means… that there are only three episodes left in the season! Wait a sec, that wasn’t the cool news we were supposed to tell you… Oh, right! It’s time for Jon Hamm’s annual visit! In tonight’s episode (Adult Swim, midnight), the Mad Men star (briefly) reprises his role as Derrick — the illegitimate son of hospital founder Arthur Childrens — who is undercover in drag as the beautiful Dr. Valerie Flame (Malin Akerman).

Hamm, as you may remember, guest-starred as Arthur in season 4 and played Derrick in seasons 2 and 3. Tonight, Derrick attempts to regain control of the hospital from Sy (Henry Winkler). We’re told that the episode also features “fairies, a donkey head, hydraulics, and poison lipstick.” Check out a clip of Hamm-kerman below.

Childrens Hospital

  • TV Show
  • In Season