American actress whose deft performances in varied roles helped make her one of the highest-paid and most influential actresses in the 1990s and early 2000s.

Although her parents briefly ran an actors' workshop when she was a child, Roberts had no acting experience or formal training when she moved to New York City after high school to pursue a career in show business. Although she signed with a modeling agency upon her arrival, she failed to land any jobs. Her first film role turned up after she was recommended by her older brother, actor Eric Roberts, for a bit part as his on-screen sister in Blood Red (1989), a drama set in the late 1800s; although the film was completed in 1986, its release was delayed for several years. She next made several television appearances before securing her first leading part in Mystic Pizza (1988). Her career took off after she was cast in Steel Magnolias (1989), which featured such veteran actresses as Shirley MacLaine (MacLaine, Shirley), Olympia Dukakis, and Sally Field. Roberts received an Academy Award nomination for best supporting actress for her heartrending portrayal of Field's diabetic daughter. In 1990 she starred in Pretty Woman, an upbeat comedy about a romance between a prostitute and a business tycoon, played by Richard Gere. A huge hit, it made Roberts a household name and earned her a second Academy Award nomination.

Roberts continued to work steadily throughout the 1990s, starring in Flatliners (1990), Sleeping with the Enemy (1991), The Pelican Brief (1993), Something to Talk About (1995), Mary Reilly (1996), My Best Friend's Wedding (1997), and Stepmom (1998), for which she also served as executive producer. Her personal life at times overshadowed her professional career, however, as when her highly publicized marriage to singer Lyle Lovett abruptly ended in 1995. In 1999 Roberts starred in two popular romantic comedies, Notting Hill and Runaway Bride, the latter of which again paired her with Gere.

In 2000 Roberts launched her own production company, Shoelace Productions, and that same year she commanded $20 million for her starring role in Erin Brockovich. The film portrayed the real-life story of a law-office clerk who helped the citizens of a California town win a multimillion-dollar settlement against a utility company for health problems caused by the company's pollution of their drinking water. For her performance, Roberts won an Academy Award for best actress. She later starred opposite Brad Pitt, George Clooney (Clooney, George), and Matt Damon in the blockbuster comedy Ocean's Eleven (2001) and its sequel Ocean's Twelve (2004). In 2006 Roberts supplied the voice for the spider Charlotte in the animated film adaptation of E.B. White (White, E.B.)'s beloved children's book Charlotte's Web. That year she also made her Broadway debut in Three Days of Rain, earning mixed reviews. Roberts next appeared with Tom Hanks (Hanks, Tom) in Charlie Wilson's War (2007), a film based on true events surrounding the U.S. government's involvement in the Afghan resistance to the Soviets in the 1980s.

Throughout her career, Roberts lent her support to numerous charitable organizations, including UNICEF and the American Red Cross (Red Cross and Red Crescent) Disaster Relief Fund. In order to raise awareness for threatened species of wildlife, she narrated the documentary In the Wild: Orangutans with Julia Roberts (1998), and for Wild Horses of Mongolia (2000) she lived with Mongolian nomads for several weeks; both programs appeared on American television.