Lance Guest developed a serious interest in acting in the ninth grade while attending Saratoga High School, and he majored in theater while attending UCLA. His most notable role is in the 1984 science fiction film The Last Starfighter as Alex Rogan, and as Beta, a robot sent to replace Alex while he was in space. Guest also played Michael Brody in Jaws 4: The Revenge, and has done extensive television work as well. He has guest starred on St. Elsewhere, The Wonder Years, Party of Five, JAG, NYPD Blue, The X-Files, Becker, Life Goes On, House and Jericho. Lance has also starred on Broadway as Johnny Cash in the musical Million Dollar Quartet, a fictionalized depiction of four iconic musicians meeting.