Chyler Leigh West (pronounced / kalr /; nee Potts; born April 10, 1982), known professionally as Chyler Leigh, is an American actress, singer and model. She is best known for her portrayal of Janey Briggs in the comedy film Not Another Teen Movie (2001), Dr. Alexandra "Lexie" Grey in the ABC medical drama series Grey's Anatomy (2007 -- 2012), and Alexandra "Alex" Danvers in the CBS / CW superhero series Supergirl (2015 -- present), subsequently appearing in the other series that make up the Arrowverse.

Answer this question: who does chyler leigh play in greys anatomy? Let's think fast. Stream of consciousness:
The relevant information is: She is best known for her portrayal of Janey Briggs in the comedy film Not Another Teen Movie (2001), Dr. Alexandra "Lexie" Grey in the ABC medical drama series Grey's Anatomy (2007 -- 2012), and Alexandra "Alex" Danvers in the CBS / CW superhero series Supergirl (2015 -- present), subsequently appearing in the other series that make up the Arrowverse. So the final answer is Dr. Alexandra '' Lexie '' Grey.