Unusual for a series, no one character appears in every episode. The closest to hold this achievement are John C. McGinley (Dr. Cox) and Donald Faison (Turk), who are absent from three episodes each. Following them are Ken Jenkins (Bob Kelso) and Zach Braff (J.D.), who are absent from seven and eight episodes, respectively. See more

Goofs

The x-ray with the show's title shown in the beginning is turned the wrong way: the heart should be seen on the right hand side. This was an intentional mistake put in by creator Bill Lawrence to represent the core idea of the show: young doctors in over their heads. Bill Lawrence reminds viewers that this goof was completely intentional in interviews, DVD commentaries, and virtually any other available opportunity. See more