Julianne Moore (born December 3, 1960) is an American actress.

She began her acting career in 1983 in minor roles, before joining the cast of the soap opera, As the World Turns, for which she won a Daytime Emmy Award (Daytime Emmy Award for Outstanding Younger Actress in a Drama Series) in 1988. She began to appear in supporting roles in films during the early 1990s, achieving recognition in several independent films before her performance in Boogie Nights (1997) brought her widespread attention and nominations for several major acting awards.

Her success continued with films such as The End of the Affair (The End of the Affair (1999 film)) (1999) and Magnolia (Magnolia (film)) (1999). She was acclaimed for her portrayal of a betrayed wife in Far from Heaven (2002), winning several critic awards as best actress of the year, in addition to several other nominations, including the Academy Award (Academy Award for Best Actress), Golden Globe (Golden Globe Award for Best Actress - Motion Picture Drama), and Screen Actors Guild Award (Screen Actors Guild Award for Outstanding Performance by a Female Actor in a Leading Role). The same year she was also nominated for several awards as best supporting actress for her work in The Hours (The Hours (film)).

Moore remains active in film making, with films scheduled for release in 2009 and 2010, yet she has explained that she has curtailed her work in order to spend more time with her children.