9.3 Million people watch the "House of the Dragon" Finale on Sunday and now HBO has revealed they are going to be working on a Spin-off series about The Seasnake, but this is going to be a prequel.
The Sea Snake is Corlys Velaryon. He was Lord of the Tides, Master of Driftmark and head of House Velaryon.
"Corlys Velaryon" is played by Steve Toussaint
The news comes from Author George R.R. Martin's blog
"At the time he wrote that the show's working title had been changed from Nine Voyages to The Sea Snake – Corlys' nickname throughout Westeros. The show is being written and helmed by Bruno Heller, best known for creating HBO's Rome and CBS' The Mentalist."