Diana Rigg

Legendary English actress who portrayed Olenna Tyrell ("The Queen of Thorns"). Famous since the 1960s (The Avengers, Bond film On Her Majesty's Secret Service), Rigg lent razor-sharp wit and gravitas to Olenna. Even in her 70s, she stole scenes with cutting one-liners. Rigg's illustrious career, including Tony and Emmy wins, added prestige to the show's ensemble.