When does Grey's Anatomy return?
Grey's Anatomy
is a medical drama that originally aired on ABC
The series premiered on March 27, 2005, on ABC as a mid-season replacement. The title is a mixture of the protagonist's surname and the name of the classic anatomy textbook Gray's Anatomy. The original cast consisted of nine star-billed actors: Ellen Pompeo, Sandra Oh, Katherine Heigl, Justin Chambers, T. R. Knight, Chandra Wilson, James Pickens Jr., Isaiah Washington, and Patrick Dempsey. The show has been described by the media outlets as a television "phenomenon" or a "juggernaut" It is the longest-running scripted primetime show currently airing on ABC.