Mary-Kate Olsen (born June 13, 1986) is an American fashion designer, actress and producer. She began her acting career one year after her birth, sharing the role of Michelle Tanner with her twin sister Ashley Olsen in the television sitcom Full House (1987–1995). They also starred in numerous films together. In 1993, the production company Dualstar Entertainment Group was founded, which produced a long string of TV movies and direct-to-video releases featuring the girls; they starred in Passport to Paris (1999), Our Lips Are Sealed (2000), Winning London (2001), Holiday in the Sun (2001) and in the television series, So Little Time (2001–2002), for which she was nominated for a Daytime Emmy Award for Outstanding Performer in Children's Programming. They starred in Getting There (2002), When in Rome (2002), The Challenge (2003) and made cameos in Charlie's Angels: Full Throttle (2003). The last film she starred in with her twin sister was New York Minute (2004). She continued with her acting career independently, appearing with a few guest-star roles in films and television shows, and with her last film being Beastly (2011).

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