Walter Leonard Sparrow was a British film and television actor best known for his appearance as Duncan in the 1991 film Robin Hood: Prince of Thieves starring Kevin Costner.
Born in Eltham, London in 1927, Sparrow began his career as a stand-up comic before moving to acting with a period with the Royal Shakespeare Company. His first film role was in 1964, in Dr. Terror's House of Horrors, with Christopher Lee. Subsequent films, interspersed between countless TV appearances, included the 1969 sex fantasy Zeta One, Young Sherlock Holmes, and the acclaimed 1988 film The Accidental Tourist starring William Hurt, Kathleen Turner and Geena Davis.
His career enjoyed a resurgence in the 1990s, with Sparrow playing key roles in the 1991 film Robin Hood: Prince of Thieves as the blinded retainer Duncan, 1993's The Secret Garden as gruff gardener Ben Weatherstaff, and the 1995 American coming-of-age film Now and Then as tragic drifter 'Crazy Pete'. In 1998 he starred in Tony Harrison's film Prometheus.