"Our First Day of School" is the ninth season premiere of U.S. comedy-drama television show Scrubs. It first aired on ABC, on December 1, 2009. Set around 18 months after the eighth season's finale, it is the first episode of Scrubs following the show's ninth season revamp, and marks the introduction of the show's new medical school setting while introducing several new main characters to the cast, with most of the previous main characters returning only to be featured in supportive or guest starring roles. Zach Braff, who played central character J.D., agreed to come back for 6 of this season's 13 episodes, and narrates this episode alongside Kerry Bishé, who plays new character and narrator Lucy Bennett. This episode marks the final appearance of The Janitor.