Marion Crane, also under the alias Marie Samuels, is a character created by American author Robert Bloch in his 1959 thriller novel Psycho. She is portrayed by Janet Leigh in the 1960 version of Psycho directed by Alfred Hitchcock, by Anne Heche in the 1998 version of Psycho, and by Rihanna in the television series, Bates Motel (2017). For her performance in Psycho, Leigh was nominated for Best Supporting Actress in the Academy Awards and won a Golden Globe Award in the same category.

Psycho is a 1959 novel by American writer Robert Bloch. The novel tells the story of Norman Bates, a caretaker at an isolated motel who struggles under his domineering mother and becomes embroiled in a series of murders. The novel is considered Bloch's most enduring work and one of the most influential horror novels of the 20th century.