Sophia Anna Bush (born July 8, 1982) is an American actress, director, spokesperson, and activist. She starred in The WB/CW drama One Tree Hill, where she played Brooke Davis from 2003 to 2012. She is also known for her film roles in John Tucker Must Die (2006), The Hitcher (2007), and The Narrows (2008). In January 2014, she began starring as Det. Erin Lindsay in the NBC police procedural drama Chicago P.D.