HBO has just dropped the trailer for House of Dragon. You can watch it here:
The show will be a prequel to the hugely successful Game of Thrones and is set 200 years prior to the events in GoT.
The 10-episode series will tell the tale of House Targaryen and the Targaryen civil war that became known as the 'Dance of the Dragons.'
Doctor Who's Matt Smith has been cast as a Targaryen and the voiceover on top of the trailer is him as Prince Daemon Targaryen.
He can be heard saying: "Gods, kings, fire and blood. Dreams didn't make us kings - dragons did."
Prince Daemon Targaryen has been described by HBO as a 'peerless warrior and a dragonrider who possesses the true blood of the dragon'.
The character is also the younger brother of King Viserys Targaryen, who will be played by Paddy Considine.
Olivia Cooke will play Alicent Hightower, 'the most comely woman in the Seven Kingdoms', while Emma D'Arcy will take on the part of Princess Rhaenyra Targaryen, the king's first-born child.
The show will be based on George R.R. Martin's 2018 book Fire and Blood, and it will be primarily filmed in England.
Miguel Sapochnik has already been confirmed as director - which bodes very well indeed, as he was the one who brought us 'Battle of the B******s', 'Hardhome' and 'The Long Night', which just so happened to be some of Game of Thrones' biggest episodes during its eight-season run.
Casey Bloys, President of Programming at HBO, previously said in a statement: "The Game of Thrones universe is so rich with stories.
"We look forward to exploring the origins of House Targaryen and the earlier days of Westeros along with Miguel, Ryan [co-creator Ryan Condal] and George."
Announcing Considine's involvement in the project, HBO said of his character: "Paddy Considine (HBO's The Third Day and The Outsider) will be playing King Viserys Targaryen. Viserys was chosen by the lords of Westeros to succeed the Old King, Jaehaerys Targaryen, at the Great Council at Harrenhal.
"A warm, kind, and decent man, Viserys only wishes to carry forward his grandfather's legacy, but as we've learned from Game of Thrones, good men do not necessarily make for great kings."
House of the Dragon hits HBO Max in 2022.