Charlotte Rampling will join Showtime's Dexter for its eighth season. Rampling, 66, has been cast in a key role for what could be Dexter's final season. She'll be appearing in the recurring role of a neuro-psychiatrist whose specialities are young psychopaths and using unorthodox ways of profiling criminals. The role will have a significant impact on next seasons's story, according to Entertainment Weekly.

With an acting career that's spanned four decades, Rampling has offered her talents to a variety of complex roles. Her big break in America came in 1975 when she starred in a remake of Raymond Chandler's detective story, Farewell, My Lovely. She went on to appear in Woody Allen's Stardust Memories and The Verdict alongside Paul Newman. After taking a break from acting after the death of her sister, Rampling came back to the big screen in the 2000s with parts in Swimming Pool and The Duchess as Keira Knightley's character's mother.

Dexter will be coming back for its eighth season on June 30. It will serve as the lead-in for a new Showtime series starring Liev Schreiber titled Ray Donavon, in which he plays a "fixer" for the rich and famous.

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