House of the Dragon actor unwittingly reveals a major new character for season 3 and fans are getting excited.

Filming on the third season of HBO's Game of Thrones prequel series House of the Dragon begins this month, and we're hearing lots about casting, some of it from ...

Matt Smith in "House of the Dragon." Credit: Ollie Upton / HBO If you can count on the Targaryens for anything, it's incest. SEE ALSO: Rhaenyra Targaryen needs more dragonriders. Here are the ...