The star of the 2016 film London Town plays a younger version of this Character in HBO's Game of thrones that is also in a fantasy novel Series A Song of Ice and Fire written by Cersei Lannister.
 In 2015 she portrayed a younger version of Cersei Lannister (portrayed by Lena Headey as an adult) in flashback sequences of the opening episode of Season 5 of the HBO series "Game of Thrones". 
Cersei Lannister is a fictional character in the "A Song of Ice and Fire" series of fantasy novels by American author George R. R. Martin, and its television adaptation "Game of Thrones", where she is portrayed by Lena Headey. 
 The film stars Daniel Huttlestone, Dougray Scott, Natascha McElhone, Nell Williams, and Jonathan Rhys Meyers. 
