Education
University of California, Los Los Angeles
University of California, Los Los Angeles
Guest developed a serious interest in acting in the ninth grade while attending Saratoga High School, and he majored in theater while attending University of California, Los Los Angeles He has starred in many theatrical films including his role as Jimmy alongside actress Jamie Lee Curtis in Halloween II, and also starred in Neil Simon"s I Ought to Be in Pictures. 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. In 1987, he starred in Jaws: The Revenge as Michael Brody.
In 2000, Guest played Cosmo Cola in Stepsister from Planet Weird.
In 2001, he played Hugo Archibald in The Jennie Project. Also that year, he appeared in Mach 2.
His starring television roles included Lou Grant from 1981–1982 and Knots Landing in 1991. He has guest starred on Saint Elsewhere, The Wonder Years, Party of Five, Judge Advocate General, New York City Police Department Blue, The X-Files, Becker, Life Goes On, House and Jericho.