Chyler Leigh West (pronounced ; "née" Potts; born April 10, 1982), known professionally as Chyler Leigh, is an American actress, singer and model, best known for her portrayals of Janey Briggs in "Not Another Teen Movie" and Dr. Lexie Grey in the ABC medical drama "Grey's Anatomy". In October, 2015, she began starring in the CBS/CW show "Supergirl" as Alexandra "Alex" Danvers.