Bradford Claude Dourif is an American actor. He was nominated for an Oscar, and won a Golden Globe and a BAFTA Award for his film debut role as Billy Bibbit in One Flew Over the Cuckoo's Nest (1975). He is also known for portraying Gríma Wormtongue in The Lord of the Rings series (2002–2003) and voicing Chucky in the Child's Play franchise (1988–present). Dourif's other film roles include Wise Blood (1979), Ragtime (1981), Dune (1984), Blue Velvet (1986), Mississippi Burning (1988), The Exorcist III (1990), Alien Resurrection (1997), the 2007 remake of Halloween and its sequel. He also appeared in many television series, notably Deadwood (2004–2006, 2019), for which he received Primetime Emmy and Satellite Award nominations for his portrayal of Amos "Doc" Cochran.