Born in London, England. Entered British films as art director for THE WILD AFFAIR (1963). Was art director on A MAN FOR ALL SEASONS (1966), OLIVER! (1968) and THE LOOKING GLASS WAR (1969). Became production designer with such notable credits as SCROOGE (1970), MARY, QUEEN OF SCOTS (1971), FOLLOW ME! (1972), THE MACKINTOSH MAN and A TOUCH OF CLASS (both 1973), JUGGERNAUT (1974), THE ADVENTURES OF SHERLOCK HOLMES' SMARTER BROTHER (1975), A BRIDGE TOO FAR and THE WORLD'S GREATEST LOVER (both 1977), MAGIC (1978), THE FRISCO KID (1979), ABSENCE OF MALICE (1981), TO BE OR NOT TO BE (1983), FINDERS KEEPERS (1984, also wrote and directed), HAUNTED HONEYMOON (1986, also writer), SPACEBALLS (1987), THE HUNT FOR RED OCTOBER and HAVANA (both 1990), BASIC INSTINCT (1992), CLEAR AND PRESENT DANGER and THE SHAWSHANK REDEMPTION (both 1994), FORGET PARIS (1995), THE GREEN MILE (1999), and RUSH HOUR 2 (2001). Marsh was co-producer for THE WORLD'S GREATEST LOVER (1977) and producer for FINDERS KEEPERS (1984).

Art Direction/Set Decoration (Color) 1965: DOCTOR ZHIVAGO - Art Direction (w. John Box)  Art Direction/Set Decoration 1968: OLIVER! - Art Direction (w. John Box)  Nominated for Art Direction/Set Decoration 1970: SCROOGE - Art Direction (w. Robert Cartwright)  Nominated for Art Direction/Set Decoration 1971: MARY, QUEEN OF SCOTS - Art Direction (w. Robert Cartwright) 4 nominations, 2 Awards