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  ==TV adaptation==
  Lady Olenna, better known as "The Queen of Thorns", is the sharp-witted grandmother of Loras and Margaery. In the adaptation, Olenna is the matriarch of, and the true power behind, House Tyrell. She is also aware of and is generally unconcerned with her grandson Loras's homosexuality. Olenna implies that both closet matriarchy and tolerance of "sword-swallowers" are considered relatively normal in the Reach.  She is notably one of the few characters that Tywin Lannister treats as an equal.
  Olenna is played by the British actress Diana Rigg in the television adaption of the series of books. Commenting on the casting of Diana Rigg, David Benioff said “you don’t audition Dames, they audition you”. Rigg highly praised the show after being cast as Olenna, saying that she "couldn’t ask for better lines – I’m so lucky. I could be sitting at home crumbling but I'm not." Speaking on the character, Rigg said that Olenna "says all the things that other people dare not say".
  Remarking on the series and the character:
  I wasn't aware I was getting involved in something so huge. I really had no idea. She is also pretty evil; I'm good at evil.
  Remarking on the costumes of the series:
  Also the costume is terrific. I don’t have to spend hours in make-up and I’m in a wimple, it’s great. I adore it, I absolutely adore it.
  Executive producer D. B. Weiss said of Rigg's final scene as Olenna, "What I love about the way she plays the scene is that even though you leave the scene knowing she’s soon going to be dead shortly after you cut to black you still feel like she won. She’s probably the only character to win her own death scene."