Sharni Vinson (born 22 July 1983) is an Australian model, dancer and actress best known for her roles in Home and Away, Bait 3D, Step Up 3D and You're Next. Born in Sydney, Vinson grew up in the southern beach suburb of Cronulla. As a teenager, Vinson trained and competed at a national level in swimming, holding a total of four state records throughout high school. Vinson began singing, dancing and acting at a young age, becoming the third generation in her family of performers. Vinson initially auditioned for the role of Martha MacKenzie, but lost out on the part to fellow cast member at the time Jodi Gordon. Vinson instead portrayed the role of Cassie Turner, a troubled teenager who is taken into foster care after numerous run-ins with the police. Vinson quickly proved popular with the show's audience, receiving a nomination for "Most Popular New Female Talent" for her portrayal of Cassie Turner at the Logie Awards of 2006. In July 2007, speculation arose that Vinson intended to leave the series in order to pursue an acting career in Los Angeles. In November that same year, Vinson confirmed that she would indeed be leaving the series. Vinson's final appearance on the show was on 2 April 2008. In March 2009, Vinson was cast as Natalie, the female lead in Step Up 3D, the third installment of the Step Up film series. Vinson's appearance in the film was marked as her breakout role, having been her most high-profile role since relocating to America. Vinson's character is a talented and somewhat mysterious dancer, who faces a hard decision between love and family. After initially ultimately joining her boyfriend's dance crew and helping them to victory over the crew of her under-handed and immoral brother. Filming took place in New York City. Despite mixed reviews, the film was a box office success going on to gross over $159 million worldwide and being the highest-grossing installment of the trilogy.

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