Holliday Clark Grainger (born 27 March 1988), also credited as Holly Grainger, is an English screen and stage actress. Some of her prominent roles are Kate Beckett in the BAFTA award-winning children's series Roger and the Rottentrolls, Lucrezia Borgia in the Showtime series The Borgias, Robin Ellacott in Strike, and Estella in Mike Newell's adaptation of Great Expectations. Grainger was born in Didsbury, Manchester. Grainger played Megan Boothe in Where the Heart Is, Stacey Appleyard in Waterloo Road and Sophia in Merlin. After her role as Emily in the film The Scouting Book for Boys (2009), she played one of the Rivers sisters opposite Mia Wasikowska and Michael Fassbender in Cary Fukunaga's 2011 retelling of Jane Eyre, and had a minor role in Bel Ami alongside Robert Pattinson and Uma Thurman.