Grey's Anatomy
originally aired on ABC
The series focuses on the lives of surgical interns, residents, and attendings as they develop into seasoned doctors. The title is an allusion to Gray's Anatomy, a classic human anatomy textbook. Ellen Pompeo, Sandra Oh, Katherine Heigl, Justin Chambers, T. R. Knight, Chandra Wilson, James Pickens Jr., Isaiah Washington, and Patrick Dempsey are among the original cast. The show has been described as a television "phenomenon" or a "juggernaut", owing to its longevity and dominant ratings.