Simply known as JD, he is the show's protagonist and resident doctor. The show depicts the problems and fears he has to face in the hospital, accompanied by his Inner Monologue. JD may just be the embodiment of a Cloudcuckoolander for his most prominent habit of daydreaming, which almost always ends with a weird comment said out loud which, of course, nobody but him understands. Despite being an enthusiastic, clumsy person with a lot of self-doubt, he is an intelligent good-by-heart doctor, who cares deeply about his patients.