Rachel Roberts (born April 8, 1978 in Vancouver, British Columbia) is a Canadian model and actress. She has appeared in numerous ad campaigns, most notably for Biotherm and well known as the titular character in the film S1m0ne.
She began to work for magazines such as Elle, Vogue, Harper's Bazaar, Glamour, Marie Claire and the Sports Illustrated Swimsuit Issue of 2000.
Signing on to be skin-care line Biotherm's official model, she gained even more popularity by posing in campaigns for labels such as Ralph Lauren, Gap, Bottega Veneta, Ferre, Sisley, and Victoria's Secret. She has walked for countless designers such as Chloé, Valentino, Givenchy, Fendi, Blumarine, Roberto Cavalli, Comme des Garçons, Paul Smith and Balmain.
She was the title character of Andrew Niccol's movie S1m0ne (2002). She has guest-starred on such television series as Entourage, Ugly Betty and Numb3rs. Roberts is set to star in How to Seduce Difficult Women. She has a recurring role on the ABC one-hour drama, FlashForward , created by David Goyer.