ISLAMABAD-While HBO is still casting its Game of Thrones spin-off House of the Dragon, the cable network has put three more spin-offs into development, some of which may have crossover potential with House of the Dragon. The first show is 9 Voyages (which has also been called Sea Snake), which hails from Rome and Gotham creator Bruno Heller. The other two shows - entitled Flea Bottom and 10,000 Ships - do not have writers attached as of yet. 9 Voyages would center on Lord CorlysVelaryon, who was known as the ‘Sea Snake’ and considered the best nautical adventurer in all of Westeros. He was the head of House Velayron, which had more wealth than even House Lannister, amassing the greatest naval fleet in the world. What’s intriguing is HBO has already cast Stephen Toussaint as CorlysVelaryon in House of the Dragon, so it’s possible he could have double duty in both shows. Eve Best has also been cast as Corlys’ wife, the dragon rider Princess PrincessRhaenys Targaryen, who could also potentially appear in both shows. The second spin-off, Flea Bottom, would take place among the poorest of all the districts in the slums of King’s Landing. The third and final spin-off, 10,000 Ships, centers on Princess Nymeria, who journeyed with the Rhoynar to Dorne and married Lord Mors Martell.