During Scrubs' final season on ABC, Tom Cavanagh, who frequently guest stars as J.D.'s brother, Dan, will definitely be returning to do at least one more episode this season.
J.D.: So Mrs. Carter, it turns out your fever is just a reaction to the anestetic we gave you during your catarct surgury. I'm sending you home. Mrs. Carter: Can I drive my Trans-Am? J.D.: That's not up to me Mrs. Carter, its up to the police and the owner of those horses you killed. Mrs. Carter: They were everywhere. J.D.: You were on a race track Mrs. Carter.