| United States|
| August 31, 2004 (2004-08-31) – May 10, 2005 (2005-05-10)|
The fourth season of the American comedy television series Scrubs premiered on NBC on August 31, 2004 and concluded on May 10, 2005 and consists of 25 episodes. Heather Graham guest starred for an extended run for the first 8 episodes, and then another appearance later in the season. Colin Farrell, Matthew Perry, Molly Shannon, Clay Aiken, and Tara Reid guest starred. This season was nominated for the Primetime Emmy Award for Outstanding Comedy Series.
As the season opens, Turk arrives from his honeymoon with Carla but they soon have issues when Carla tries to change many things about her new husband. Their marriage and Turk's friendship with J.D. are also endangered when J.D. and Carla share a drunken kiss. Dr. Cox and Jordan learn that their divorce was not final, but this seemingly good news causes friction. Elliot is still angry with J.D. for breaking her heart, and the situation becomes more uncomfortable still when she dates J.D.'s brother. J.D. has a new love interest of his own when a new and very attractive psychiatrist, Dr. Molly Clock (Heather Graham), arrives at Sacred Heart. Molly serves as Elliot's mentor during her time at the hospital.
Zach Braff as Dr. John "J.D." Dorian
Sarah Chalke as Dr. Elliot Reid
Donald Faison as Dr. Chris Turk
Neil Flynn as The Janitor
Ken Jenkins as Dr. Bob Kelso
John C. McGinley as Dr. Perry Cox
Judy Reyes as Nurse Carla Espinosa
Scrubs (season 4) Wikipedia
Tad Quill and Bill Callahan, who Lawrence had worked with on Spin City, came on as co-executive producers. Bonnie Sikowiz returned to write an episode. David Feinberg was hired as a staff writer. Rich Eustis did not return.† denotes a "supersized" episode, running an extended length of 25–28 minutes.