Danielle Jane Harmer (Born 8 February 1989) is an English actress, television personality, acting coach, and former singer. She is best known for her lead role as Tracy Beaker in the CBBC series The Story of Tracy Beaker (2002–2006), Tracy Beaker Returns (2010–2012), for which she won a BAFTA in 2010, The Tracy Beaker Survival Files (2011–2012), My Mum Tracy Beaker, and The Beaker Girls (both 2021). Harmer played the role of Molly Louise Venables in the BBC One comedy series After You've Gone (2007), and starred in her own CBBC sitcom Dani's House (2008–2012) and its spin-off Dani's Castle (2013–2014). In 2008, Harmer branched into the music industry and signed a £3m record deal with Universal Group. She recorded her debut studio album, Superheroes, in September 2009, and released the single and theme from Dani's House, "Free", but the album was never released and it was later confirmed she had abandoned her music career indefinitely. In 2012, Harmer competed in the fourth series of Let's Dance for Sport Relief alongside Tyger Drew-Honey, in which they both finished as joint runners-up. Later that year, she competed in the tenth series of Strictly Come Dancing, partnered with Vincent Simone, reaching the final and finishing in fourth place.