Who voiced hal 9000 in the 1968 film?

HAL 9000 is the sentient computer that controls the Discovery One spacecraft in *2001: A Space Odyssey*. The character’s presence is felt through its calm, conversational voice, which provides a stark contrast to the tension and danger it creates. In the film, the voice is delivered by Canadian actor Douglas Rain, whose performance gives HAL a distinctive, restrained tone that underscores its artificial intelligence. Rain’s voice work extended to the 1982 sequel, *2010: The Year We Make Contact*, keeping a consistent auditory identity for the character. The choice of Rain, a seasoned stage and radio actor, contributed to the film’s immersive atmosphere and remains a defining element of the HAL mythos.