Noah Wyle as Dr. John Carter

“ER” star Noah Wyle holds the record of playing a doctor longer then anyone else in a primetime medical series. In this clip, Wyle discusses his growth as an actor and developing his character, Dr. John Carter.

The medical drama “ER” is featured on the Pioneers of Television: Doctors and Nurses episode, premiering Tuesday, April 22, 2014 at 8PM on PBS.