List of characters on Scrubs

The following is a list of characters from the NBC/ABCAmerican comedy-drama Scrubs.

Zach Braff portrays Dr. John Michael "J.D." Dorian, the show's original protagonist and narrator. J.D. begins the series as a staff intern, progressing to resident and then attending physician. His voice-over to the series comes from his internal thoughts and often features surreal fantasies. J.D. was a recurring character in Season 9, though he was still considered to be the protagonist of the episodes in which he appeared. Braff received top billing as a main cast member in each of his appearances for that season. He did not appear in the last episode of the series, titled "Our Thanks," and no mention was made of him.

J.D.'s name is based on that of Dr. Jonathan Doris, a college friend of series creator Bill Lawrence. Doris served as medical adviser to the show.

Donald Faison portrays Christopher Duncan Turk, J.D.'s best friend, a surgical attending physician and later chief of surgery. Turk roomed with J.D. in college and medical school, and the two have an extremely close relationship, described in the Season 6 episode "My Musical" as "guy love." He is married to Carla Espinosa. J.D. claims that Turk got his middle name from his father's love of donuts.

...
Wikipedia