Although One Flew Over the Cuckoo's Nest is frequently cited as Dourif's film debut, his first acting for screen was in a low-budget film called Split, which was never released.
He followed this with a role in the film W.W. and the Dixie Dancekings (1975), but his bit part was omitted from the final cut of the film.
His portrayal of the vulnerable Billy Bibbit in Cuckoo's Nest ended up being his big break, earning him a Golden Globe Award (Best Actor Debut) and a British Academy Award (Supporting Actor) as well as a nomination for Academy Award for Best Supporting Actor.

In 1981, Vincent Canby listed Dourif as one of twelve actors to watch, calling Dourif "one of the most intense, most interesting young film actors of his generation."
Dourif returned to New York, where he continued in theater and taught acting and directing classes at Columbia University until 1988, when he moved to Hollywood.

Dourif has often played eccentric or disturbed characters, starting with Cuckoo's Nest and continuing with Eyes of Laura Mars (1978), John Huston's Wise Blood (1979)," Forman's Ragtime (1981), Marc Didden's Istanbul (1985) and David Lynch's Dune (1984) and Blue Velvet (1986).

Dourif has appeared in a number of horror films, most notably as the voice of Chucky in the Child's Play franchise.
He portrayed the Gemini Killer in The Exorcist III (1990) and appeared in Death Machine (1994) and Alien Resurrection (1997).
He later appeared as Sheriff Lee Brackett in Rob Zombie's Halloween (2007) and Halloween II (2009).
In 2013, Dourif reprised his role as Chucky in the sixth installment of the Child's Play franchise, Curse of Chucky, and then again in the 2017 sequel, Cult of Chucky, both of which were straight-to-DVD releases.
His daughter, Fiona Dourif, also starred with him in both films.

Other notable film roles include Gríma Wormtongue in the Lord of the Rings trilogy and supporting roles in Fatal Beauty (1987), Mississippi Burning (1988), Hidden Agenda (1990), London Kills Me (1991) and Sinner (2007).

Dourif has worked with director Werner Herzog on many occasions, appearing in Scream of Stone (1991), The Wild Blue Yonder (2005), Bad Lieutenant: Port of Call New Orleans (2009), and My Son, My Son, What Have Ye Done? (
2009).
Although One Flew Over the Cuckoo's Nest is frequently cited as Dourif's film debut, his first acting for screen was in a low-budget film called Split, which was never released. He followed this with a role in the film W.W. and the Dixie Dancekings (1975), but his bit part was omitted from the final cut of the film. His portrayal of the vulnerable Billy Bibbit in Cuckoo's Nest ended up being his big break, earning him a Golden Globe Award (Best Actor Debut) and a British Academy Award (Supporting Actor) as well as a nomination for Academy Award for Best Supporting Actor.
In 1981, Vincent Canby listed Dourif as one of twelve actors to watch, calling Dourif "one of the most intense, most interesting young film actors of his generation." Dourif returned to New York, where he continued in theater and taught acting and directing classes at Columbia University until 1988, when he moved to Hollywood.
Dourif has often played eccentric or disturbed characters, starting with Cuckoo's Nest and continuing with Eyes of Laura Mars (1978), John Huston's Wise Blood (1979)," Forman's Ragtime (1981), Marc Didden's Istanbul (1985) and David Lynch's Dune (1984) and Blue Velvet (1986).
Dourif has appeared in a number of horror films, most notably as the voice of Chucky in the Child's Play franchise. He portrayed the Gemini Killer in The Exorcist III (1990) and appeared in Death Machine (1994) and Alien Resurrection (1997). He later appeared as Sheriff Lee Brackett in Rob Zombie's Halloween (2007) and Halloween II (2009). In 2013, Dourif reprised his role as Chucky in the sixth installment of the Child's Play franchise, Curse of Chucky, and then again in the 2017 sequel, Cult of Chucky, both of which were straight-to-DVD releases. His daughter, Fiona Dourif, also starred with him in both films.
Other notable film roles include Gríma Wormtongue in the Lord of the Rings trilogy and supporting roles in Fatal Beauty (1987), Mississippi Burning (1988), Hidden Agenda (1990), London Kills Me (1991) and Sinner (2007).
Dourif has worked with director Werner Herzog on many occasions, appearing in Scream of Stone (1991), The Wild Blue Yonder (2005), Bad Lieutenant: Port of Call New Orleans (2009), and My Son, My Son, What Have Ye Done? (2009).
Brad Dourif