Bradford Claude Dourif is an American semi-retired actor. He is best known for voicing Chucky in the Child's Play franchise (1988–present), portraying Gríma Wormtongue in The Lord of the Rings film series and his Oscar nominated role as Billy Bibbit in One Flew Over the Cuckoo's Nest (1975).

Gríma, called (the) Wormtongue, is a fictional character in J. R. R. Tolkien's The Lord of the Rings. He serves as a secondary antagonist there; his role is expanded in Unfinished Tales. He is introduced in The Two Towers as the chief advisor to King Théoden of Rohan and henchman of Saruman.