Julianne Moore (born December 3, 1960) is an American-British actress and children's author. Prolific in cinema since the early 1990s, Moore is particularly known for her portrayals of emotionally troubled women. Her career has involved both art house and Hollywood films.After studying theatre at Boston University, Moore began her career with a series of television roles. From 1985 to 1988, she was a regular in the soap opera As the World Turns, earning a Daytime Emmy for her performance. 

Her film debut was in 1990, and she continued to play supporting roles throughout the early 1990s. Moore made her breakthrough with Curtis Hanson's The Hand That Rocks the Cradle (1992), Robert Altman's Short Cuts (1993), followed by critically acclaimed performances in Vanya on 42nd Street (1994), and Safe (1995). Starring roles in the blockbusters Nine Months (1995) and The Lost World: Jurassic Park (1997) established her as a leading Hollywood actress.In 2015 she won the Oscar Award for Best Actress for the flim Still Alice.