Claire Rhiannon Serenity Holt (born June 11th, 1988) is an Australian actress. She's best known for her role as Emma Gilbert in the Nickelodeon show H20: Just Add Water, Samara Cook in the ABC show Pretty Little Liars, Chastity Meyer, in the spinoff movie Mean Girls 2, Rebekah Mikaelson in The Vampire Diaries and The Originals, and for her new upcoming role as Charmain Tully in Aquarius.
Claire was born in Brisbane, Australia. She grew up in Australia with her parents John and Anne, along with her brother and two sisters. She was a very active child, and played many sports such as swimming, volleyball, water polo and Tae-Kwon-Do. She's admitted to loving to sing, and was apart of the school choir when she was younger. She can also play both the piano and the guitar. She graduated from Stuartholme School in Toowong at the end of 2005. Right around the time she got her role as Emma Gilbert on the Nickelodeon show H20: Just Add Water.
Claire played the role of Emma Gilbert on the Nickelodeon show H20: Just Add Water' from 2006-2008. She quit after season two to film Messengers 2: The Scarecrow, which was a direct-to-video movie. In 2010, she starting fliming Mean Girls 2, which was a TV movie, released early 2011. In March of 2011, Holt made her first appearence as Samara Cook on the hit show Pretty Little Liars.' She appeared in five episodes before leaving the show. Later that year, Claire joined the cast of The Vampire Diaries'. She played Rebekah Mikaelson from 2011-2013. During that time, she filmed the movie Blue Like Jazz, where she played the leading lady Penny. In 2013, Claire signed into The Originals to continue her role as Rebekah Mikaelson. Holt temporarily quit the show, but she promised she will one day return. In 2014, Claire made a cameo appearence in The Madden Brother's music video for 'We Are Done.' Later 2014, Holt confirmed that she joined the cast of the new NBC show Aquarius.