Bella Thorne was born on October 8, 1997 in Pembroke Pines, Florida. She is the youngest of four children, Kaili (born in 1992), Dani (born in 1993), and Remy (born in 1995), who are also actors and models. Thorne, who identifies herself as part Cuban-American, spoke Spanish as her first language growing up.

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Thorne’s first film appearance was an uncredited role as a sidelines fan in the 2003 film Stuck on You. She has since appeared in film and television projects including Jimmy Kimmel Live!, Entourage, The O.C. (as a younger version of Taylor Townsend), the third-last episode of October Road (as Angela Ferilli, the pre-adolescence crush of the main characters; her older brother Remy also guest-starred in the same episode as a younger Eddie Latekka), and five episodes of Dirty Sexy Money (as Margaux Darling). In 2007, Thorne appeared as a young girl plagued by supernatural visions in The Seer. In 2008, Thorne starred alongside Christian Slater and Taylor Lautner in the short-lived drama series My Own Worst Enemy and won a Young Artist’s Award for her portrayal of the character Ruth Spivey. She also appeared in the ten-episode web series Little Monk, which depicted characters from the series Monk as children. She also guest starred on Wizards of Waverly Place, as Max’s girlfriend Nancy Lukey. Thorne enjoyed an extensive career as a child model. Since appearing in her first pictorial for a parenting magazine at the age of 6 weeks, Thorne has starred in television ad campaigns for Digital Light Processing, Publix, and KFC, and appearing in print ads for brands including Barbie, ALDO K!DS, JLO by Jennifer Lopez, Kaiya Eve Couture, LaSenza Girl, Tommy Hilfiger, Ralph Lauren, Guess?, Target and Justice. She also modelled for Sears back to school.