Jemma McKenzie-Brown (born on June 2, 1994 in Beverley, East Yorkshire, England, UK) is a British actress who played Tiara Gold, Sharpay Evans's newly hired personal assistant in High School Musical 3: Senior Year. During the production of HSM3, Jemma became ill [apparently], and she was actually hoping to cast as Sharpay, for the concert version, but sadly she never did.