<P> When Romero - who had earlier escaped from prison - takes Norman captive, "Mother" urges Norman to kill him, but not before he confronts Norman with the reality that he killed his mother . After Norman finally admits to himself that he killed Norma, "Mother" appears to him and tells him she is leaving, as there is no longer anything she can protect him from . Norman later invites Dylan to a "family dinner" with Norma's corpse at the head of the table . When Dylan tells Norman that Norma is dead, Norman attacks him, forcing Dylan to shoot him in self - defense . As he dies, Norman sees a vision of his mother embracing him . </P> <P> Norma Bates is not strictly a character in the novel by Bloch, and her presence is indicated only as a "ghost" voice and a corpse in the Psycho films . </P> <P> To confuse the audience, Hitchcock hired six uncredited people to play the mother . Mrs. Bates was played by Mitzi Koestner, Anna Dore, and Margo Epper as body doubles; and voiced by Virginia Gregg, Jeanette Nolan, and Paul Jasmin (a friend of Perkins). The voices were thoroughly mixed, except for the last speech, which is all Gregg's . </P> <P> Norma Bates was introduced as a living character in Psycho IV: The Beginning . Olivia Hussey was directly offered the role . </P>

Who was the voice of mrs bates in psycho