'Game of Thrones' actress Diana Rigg has died aged 82

• Dame Diana Rigg has died peacefully in her sleep after being diagnosed with cancer in March. She was 82.
• The actress was best known for playing Olenna Tyrell in "Game of Thrones," and was nominated for four Emmy awards for her role in the HBO show.
• She also played a Bond girl in "On Her Majesty's Secret Service" and starred in the TV series "The Avengers."

Dame Diana Rigg, best known for playing Olenna Tyrell in HBO's "Game of Thrones," has died aged 82 after being diagnosed with cancer in March. The actress died peacefully in her sleep, as reported by the BBC.

"She died peacefully early this morning," her agent said, according to the BBC. "She was at home with her family who have asked for privacy at this difficult time."

"My Beloved Ma died peacefully in her sleep early this morning, at home, surrounded by family," her daughter, actress Rachael Stirling, said.

"She died of cancer diagnosed in March, and spent her last months joyfully reflecting on her extraordinary life, full of love, laughter and a deep pride in her profession. I will miss her beyond words," she continued.

Rigg was known for roles in 'Game of Thrones' and 'James Bond'

While modern audiences will likely know Rigg best for starring as the quick-witted and savvy Olenna in "Game of Thrones," Rigg has had a long and varied career full of range.

Indeed, Rigg has starred in dramas and comedies alike, from 1970's "Julius Caeser" to 1981's "The Great Muppet Caper." She is also known for her work in movies, television, and theatre. She starred alongside Anthony Hopkins as Lady Macbeth in the 1972 production at the Old Vic Theatre in London.

She won the Tony Award for best actress in 1994 for "Medea," and is also Olivier Award nominee.

In television, she amassed nine Emmy nominations, winning once in 1997 for "Rebecca." Four of those nominations came for playing Olenna in "Game of Thrones." She joined the cast of the mammoth show in the third season and starred in a total of 18 episodes across five seasons until her character's death in season seven.

Rigg also starred as Bond girl Tracy Bond in 1969's "On Her Majesty's Secret Service." Starring alongside George Lazenby's James Bond, Rigg's Tracy is the only Bond girl to become Mrs. Bond. She was always known for the popular British television series "The Avengers," which ran from 1961 to 1969 for six seasons.

Rigg joined the show's fourth and fifth seasons, which aired between 1965 and 1968. Rigg played a British spy herself in this, as agent Emma Speel. Later, Uma Thurman would take on Rigg's role in the 1998 film adaptation.

Rigg will make appearances in BBC's 'Black Narcissus' and the 2021 horror movie 'Last Night in Soho,' which both finished filming before her death

Recently, Rigg starred in the TV series "All Creatures Great and Small" earlier this year, the movie "Breathe" in 2017, and in the 2018 production of "My Fair Lady" at the Vivian Beaumont Theatre in New York — her final stage performance.

Her final television role will be in the upcoming BBC TV series "Black Narcissus," and her final movie role will be in Edgar Wright's highly anticipated 2021 horror "Last Night in Soho." Filming for both of these projects was completed before Rigg's death.

Rigg is survived by one child — her daughter Rachael Stirling, who is also an actress and who she starred with in the 2013 "Doctor Who" episodes "The Crimson Horror."