Chyler Leigh West (pronounced KY-lər; born Potts; April 10, 1982), known professionally as Chyler Leigh, is an American actress, singer and model. She is known for portraying Janey Briggs in the comedy film Not Another Teen Movie (2001), Lexie Grey in the ABC medical drama series Grey's Anatomy (2007–2012), and Alex Danvers in the DC Comics superhero series Supergirl (2015–present).