GAME of Thrones came to a dramatic end in May 2019, leaving an empty Westeros-shaped hole in the hearts of its loyal fans. Game of Thrones prequel cast list: the actors appearing in the series – and where you've seen them It's a diverse set of new faces for the Game of Thrones universe. By Alex Nelson. And while HBO’s prequel Bloodmoon was meant to fill the gap, the pro… Martin announced last September that a ‘Game of Thrones’ prequel film was definitely in the cards. George R.R. Now HBO has already started approaching actors to play some important characters in the ‘Game of Thrones’ prequel … The prequel will go back thousands of years from the Westeros we know and love (Picture: HBO/Amazon) Game of Thrones fans were left with mixed feelings after … A poll by Dibyayan_Chakravorty. This prequel (working title: Bloodmoon) won the "game of thrones" (so to speak) between a group of five potential spin-offs, of which the remaining four were cast aside - Valar Morgulis. Winter is coming, and so is the long-awaited Game of Thrones prequel. A Game of Thrones prequel series has finally been confirmed by HBO – here’s everything we know so far about its title, release date, cast, plot and rumours. Poll: 'Game of Thrones' Prequel Movie Cast.