Grey's Anatomy is a TV show.
Grey 's Anatomy is an American medical drama television series that premiered on American Broadcasting Company ( ABC ) as a mid-season replacement on March 27 , 2005 . The cast has undergone major changes through the show 's run , with many members leaving and being replaced by others . It has received multiple Emmy nominations , including two for Outstanding Drama Series . Meredith Grey , M.D. is a fictional character from the medical drama television series Grey 's Anatomy , which airs on the American Broadcasting Company ( ABC ) in the United States . Sandra Miju Oh ( born July 20 , 1971 ) is a Canadian actress known for her role as Dr. Cristina Yang on ABC 's medical drama Grey 's Anatomy , a role that earned her a Golden Globe , two Screen Actors Guild awards , and five nominations for Primetime Emmy Award for Outstanding Supporting Actress in a Drama Series .