'Game of Thrones' prequel series starts production, releases BTS photos

The time of the Targaryens is coming! The 'Game of Thrones' prequel series titled 'House of the Dragon' is officially in production.

HBO announced on Twitter on Monday that 'House of the Dragon' has begun filming in the UK and released the behind-the-scenes photos of a socially distanced table read.

Alongside a photo of the cast doing a socially distanced table read, the official Twitter account for the series wrote, "Fire will reign. The @HBO original series #HouseoftheDragon is officially in production. Coming soon to @HBOMax in 2022."

To further excite fans, the Twitter account also shared a closer look at the star cast of the series. First up, and the most notable name in the cast, is former 'The Crown' star Matt Smith. Per the social media update, Smith will play Prince Daemon Targaryen.

Rounding out House Targaryen is Emma D'Arcy as Princess Rhaenyra Targaryen and Paddy Considine as King Viserys. There's also Steve Toussaint, who will play a character called The Sea Snake. The upcoming series 'House of the Dragon' will premiere in 2022.