Carter was then written out of the show by moving to Africa and marrying his love interest, Makemba Likasu, in the episode "The Show Must Go On".He was initially interested in surgery and completed the first year of a surgical residency involving mentoring by a surgical resident: Dr.Extended exposure to the emergency room reveals Carter's true passion and he decides to change his specialty to emergency medicine.
John Truman Carter III, portrayed by Noah Wyle, is a fictional character from the American television series ER.
The character, called simply "Carter" by most other characters, was introduced in the pilot episode and appeared for eleven consecutive seasons.
Wyle decided to leave the show as a regular character at the conclusion of season 11, despite offers to stay.
He cited a budding family and an already lengthy tenure on the show as reasons.
Because of the WGA Strike, ER was renewed for a 15th season (it was originally slated to end after Season 14), during which Wyle appeared in five episodes as part of the show's plan to bring back former regulars.
Carter arrives to County General as a third-year medical student.