Glee is a musical comedy-drama television series that airs on Fox in the United States. It focuses on the high school glee club New Directions competing on the show choir competition circuit, while its members deal with relationships, sexuality and social issues. The initial main cast encompassed club director and Spanish teacher Will Schuester (Matthew Morrison), cheerleading coach Sue Sylvester (Jane Lynch), guidance counselor Emma Pillsbury (Jayma Mays), Will's wife Terri (Jessalyn Gilsig), and eight club members played by Dianna Agron, Chris Colfer, Kevin McHale, Lea Michele, Cory Monteith, Amber Riley, Mark Salling and Jenna Ushkowitz. For the second season, formerly recurring cast members Mike O'Malley, Heather Morris and Naya Rivera were promoted to the main cast. In the third season the main cast remained at fifteen, with Harry Shum, Jr. and Darren Criss promoted to it, while Gilsig and O'Malley no longer received star billing. The fourth season began with fourteen in the main cast, with Chord Overstreet being promoted, and Mays and Agron were removed and demoted to recurring cast. The fifth season saw the biggest change, with Monteith's death, and Morris, Riley, Salling and Shum all going down to recurring status. At the same time Jacob Artist, Melissa Benoist, Blake Jenner, Alex Newell and Becca Tobin were promoted to the main cast.