Report: Dowager Countess will be killed off 'Downton Abbey'

Downton Abbey Season 2 on MASTERPIECE Classic Part 7 - Sunday, February 19, 2012 at 9pm ET on PBS Shown: Maggie Smith as The Dowager Countess (C) Carnival Film & Television Limited 2011 for MASTERPIECE This image may be used only in the direct promotion of MASTERPIECE CLASSIC. No other rights are granted. All rights are reserved. Editorial use only. MASTERPIECE CLASSIC via PBS

Maggie Smith has reportedly told "Downton Abbey" creator Julian Fellowes that she wants out of the hit British TV drama.

"Maggie has asked Julian to write her character out," the U.K.'s Daily Mail is reporting. "She is filming until August and then wants to leave, going out on a high. She thinks that three (seasons) is enough and she wants to get back to the stage and big screen."

Smith's Dowager Countess, a master of the potent one-line put-down, is one of the show's pivotal characters. The Daily Mail's source says she is likely to be struck down by a fatal illness at the end of the third season, which ITV is currently filming in the U.K.

Smith, 77, won a Best Actress Oscar for playing a troubled teacher in the 1969 film "The Prime Of Miss Jean Brodie." She may be best known to today's audiences for her roles in the Harry Potter movies.

In November, she'll be seen in the BBC Films comedy, "Quartet."

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