Title: List of Game of Thrones characters
Content: Olenna Tyrell (seasons 3–7) portrayed by Diana Rigg. Diana Rigg 1973.jpg Lady Olenna, better known as "the Queen of Thorns", is the sharp-witted grandmother of Loras and Margaery. Considered Tywin Lannister's female counterpart, Olenna is a matriarch and the real power behind House Tyrell. She has very progressive views where she feels women should be more involved in politics and is accepting of Loras' homosexuality where the people of Reach have no problems with it. After asking Sansa directly what Joffrey is like, and believing Sansa that Joffrey is an abusive "monster", Olenna decides to protect both Margaery and Sansa. To prevent the 
Title: Game of Thrones (2014 video game)
Content: Jon Snow (Kit Harington), a member of the Night's Watch and bastard son of Ned Stark. ; Cersei Lannister (Lena Headey), the Queen Regent of the Seven Kingdoms serving in King's Landing and mother to King Joffrey Baratheon. ; Tyrion Lannister (Peter Dinklage), the Master of Coin serving in King's Landing and Queen Cersei's brother. ; Ramsay Snow (Iwan Rheon), a sadistic and ruthless bastard son of Roose Bolton, the Warden of the North. ; Daenerys Targaryen (Emilia Clarke), the Mother of Dragons and the potential future queen of the Seven Kingdoms, operating in Meereen. ; Margaery Tyrell (Natalie Dormer), a lady of Highgarden, betrothed to King Joffrey (who does not appear in the game). 
Title: List of Game of Thrones characters
Content:  to the young ladies of Winterfell. She was killed by the Lannisters after Eddard Stark's failed attempt to arrest King Joffrey and Queen Regent Cersei. ; Old Nan (season 1) portrayed by Margaret John. Old Nan was an old serving woman at Winterfell who tells the Stark children stories from beyond the Wall. She is the great-grandmother of Hodor. Margaret John died before the filming of Season 2 and the writers decided that Old Nan died between seasons instead of recasting the role. ; Jon Umber (season 1) portrayed by Clive Mantle. Clive Mantle (cropped).jpg Called "the Greatjon", Lord Umber is 
Title: Diana Rigg
Content:  Olenna Tyrell, a witty and sarcastic political mastermind popularly known as the Queen of Thorns, the paternal grandmother of regular character Margaery Tyrell. Her performance was well received by critics and audiences alike, and earned her an Emmy nomination for Outstanding Guest Actress in a Drama Series for the 65th Primetime Emmy Awards in 2013. She reprised her role in season four of Game of Thrones, and in July 2014 received another Guest Actress Emmy nomination. In 2015 and 2016, she again reprised the role in seasons five and six in an expanded role from the books. In 2015 and 
Title: List of Game of Thrones characters
Content:   Sansa Stark is portrayed by Sophie Turner. Sansa of House Stark is the first daughter and second child of Eddard and Catelyn Stark. Initially betrothed to King Joffrey, she is later released from her vow by Joffrey's betrothal to Margaery Tyrell. When Joffrey is poisoned at his wedding to Margaery, Sansa is smuggled out of King's Landing by Littlefinger and taken first to the Eyrie and then to her home of Winterfell, now under the control of House Bolton. She is forced to marry the abusive and sadistic Ramsay Bolton, but later escapes with the help of Theon Greyjoy. She reunites with her brother Jon Snow at Castle Black and, with Littlefinger's army, helps him reclaim Winterfell. She rules the fortress while Jon leaves to fight for Daenerys Targaryen, which Littlefinger uses as an opportunity to drive her away from her siblings until Brandon Stark (now the Three-Eyed Raven) reveals his treacherous past. Sansa gives the order to have Littlefinger executed by Arya. Sansa survives the attack of the White Walkers and is eventually crowned as queen of an independent North.
Title: Game of Thrones (season 3)
Content: Julian Glover as Grand Maester Pycelle ; Diana Rigg as Olenna Tyrell ; Finn Jones as Loras Tyrell ; Ian Beattie as Meryn Trant ; Daniel Portman as Podrick Payne ; Paul Bentley as the High Septon ; Will Tudor as Olyvar ; Esmé Bianco as Ros ; Josephine Gillan as Marei ; Pixie Le Knot as Kayla 
Title: Game of Thrones (season 8)
Content: Peter Dinklage as Tyrion Lannister ; Nikolaj Coster-Waldau as Jaime Lannister ; Lena Headey as Cersei Lannister ; Emilia Clarke as Daenerys Targaryen ; Kit Harington as Jon Snow ; Sophie Turner as Sansa Stark ; Maisie Williams as Arya Stark ; Liam Cunningham as Davos Seaworth ; Nathalie Emmanuel as Missandei ; Alfie Allen as Theon Greyjoy ; John Bradley as Samwell Tarly ; Isaac Hempstead Wright as Bran Stark ; Gwendoline Christie as Brienne of Tarth ; Conleth Hill as Varys ; Rory McCann as Sandor "The Hound" Clegane ; Jerome Flynn as Bronn ; Kristofer Hivju as Tormund Giantsbane ; Joe Dempsie as Gendry ; Jacob Anderson as Grey Worm ; Iain Glen as Jorah Mormont ; Hannah Murray as Gilly ; Carice van Houten as Melisandre 
Title: Game of Thrones (season 1)
Content:  Mormont, Alfie Allen as Theon Greyjoy, Sophie Turner as Sansa Stark and Maisie Williams as Arya Stark. On September 1 Lena Headey was announced as Cersei Lannister. On September 23, Martin confirmed that Rory McCann had been cast as Sandor Clegane. Isaac Hempstead-Wright was confirmed as Bran Stark on October 14, followed by an announcement of Jason Momoa as Khal Drogo three days later. After the pilot was shot and the series picked up, it was announced that the role of Catelyn had been recast, with Michelle Fairley replacing Ehle. Later, it was also confirmed that Emilia Clarke would replace Tamzin Merchant as Daenerys. The rest of the cast was filled out in the second half of the year, and included Charles Dance as Tywin Lannister, Aidan Gillen as Petyr 'Littlefinger' Baelish, and Conleth Hill as Varys.
Title: Game of Thrones (season 5)
Content: Julian Glover as Grand Maester Pycelle ; Anton Lesser as Qyburn ; Ian Gelder as Kevan Lannister ; Roger Ashton-Griffiths as Mace Tyrell ; Finn Jones as Loras Tyrell ; Diana Rigg as Olenna Tyrell ; Eugene Simon as Lancel Lannister ; Ian Beattie as Meryn Trant ; Hafþór Júlíus Björnsson as Gregor Clegane ; Paul Bentley as the High Septon ; Jonathan Pryce as the High Sparrow ; Hannah Waddingham as Septa Unella ; Will Tudor as Olyvar ; Josephine Gillan as Marei 
Title: Home (Game of Thrones)
Content:  Isaac Hempstead-Wright (Bran Stark), Ellie Kendrick (Meera Reed), Kristian Nairn (Hodor), Gemma Whelan (Yara Greyjoy) and Patrick Malahide (Balon Greyjoy) make return appearances after an absence of several years (Malahide since the third season, the others since the fourth season). The episode has the introduction of new recurring cast members Max von Sydow, replacing Struan Rodger, who briefly portrayed the character in Season 4, as the Three-Eyed Raven, Kae Alexander as Leaf, Pilou Asbaek as Euron Greyjoy, and Michael Feast as Aeron Greyjoy. Additionally, several child actors were cast in order to portray young versions of well known characters within the show for Bran's vision of Winterfell in the past. These included Sebastian Croft as young Ned Stark, Cordelia Hill 

Question: who plays the grandmother in game of thrones?
Answer: Rigg.