Jemma McKenzie-Brown is an English actress. She attended Sylvia Young Theatre School where she trained in acting. In 2006, she made her acting debut after landing the role of Georgina Pritchard in the BBC One series The Amazing Mrs Pritchard. After this, she guest-starred in an episode of M.I. High. The actress gained recognition for her role as Tiara Gold in the Hollywood film High School Musical 3: Senior Year. She had a long hiatus afterward, only returning to act in 2016 where she starred in the film All Killer. She later had one-time roles in such TV shows as Doctors and The Rook.