Rachel Sarah Bilson (born August 25, 1981) is an American actress. Bilson grew up in a California show business family, and made her television debut in 2003, subsequently becoming well known for playing Summer Roberts on the prime-time drama series The O.C.
Born August 25, 1981 (age 32)Los Angeles, California, U.S.
Years active 2003–present
Partner(s) Hayden Christensen (2007–present)