Game of Thrones had Diana Rigg fired.
Diana Rigg . She is known for playing Emma Peel in the 1960s TV series The Avengers ( 1965 -- 68 ) , and Olenna Tyrell in Game of Thrones ( 2013 -- present ) . Game of Thrones . Lena Headey , Emilia Clarke , Kit Harington , Maisie Williams , Diana Rigg , and Max von Sydow have also received Primetime Emmy Award nominations for their performances in the series .