Natascha McElhone is an English actress of stage, screen and television, best known for her roles in Ronin, The Truman Show, Solaris. McElhone also plays a leading role in the Showtime series Californication.

She was born Natascha Taylor in Hampton Court, Surrey, London, England to parents who were both journalists. She took the maiden name of her mother, Noreen, as her stage name. Her parents separated when she was two and her Irish mother subsequently moved the family to Brighton and later married journalist and columnist Roy Greenslade.

McElhone took lessons in Irish dancing from ages six to twelve, and was educated at St. Mary's Hall School for Girls, an independent boarding school in Brighton, East Sussex, England, after which she graduated from the London Academy of Music and Dramatic Art in 1993.

She began her career in the theater, including starring in Richard III in Regent's Park, The Count of Monte Cristo and The Cherry Orchard at the Haymarket Theatre, Leicester; and in Midsummer Night's Dream at the Open Air Theatre. McElhone made her television debut in the BBC's Bergerac in 1991, and was seen in an episode of Absolutely Fabulous in 1992.

McElhone made her film debut in 1996's Surviving Picasso with Anthony Hopkins In the same year she was seen in the Dennis Potter TV mini-series Karaoke. Although she has made relatively few films, her most successful to date has been 1998's The Truman Show with Jim Carrey. She had leading roles opposite Robert DeNiro in Ronin and George Clooneyin Solaris.

In 2005, the actress co-starred in the NBC miniseries Revelations with actor Bill Pullman. She starred in a 2006 West End production of Honour at the Wyndham's Theatre alongside Diana Rigg and Martin Jarvis. She then accepted a leading role in the sexually provocative Showtime cable television series Californication as Karen, alongside David Duchovny.

McElhone is the newest Neutrogena spokeswoman and the face of the Ageless Essentials Continuous Hydration line.