Animation icon Genndy Tartakovsky (Primal, Samurai Jack, Hotel Transylvania) is reportedly attached to the long-gestating Game of Thrones animated spin-off series 9 Voyages, which will follow the adventures of Lord Corlys Velaryon, aka The Sea Snake. The character is played in the live-action series House of the Dragon by actor Steve Toussaint.
News of Tartakovsky’s attachment comes via Deadline’s interview with Casey Bloys, Chairman and CEO of HBO and HBO Max Content.
“HBO has developed a slew of other offshoots, with a number being rumored to be currently in the works, including a Jon Snow and Arya Stark sequel written by Quoc Dang Tran; an animated Sea Snake project Nine Voyages, with Genndy Tartakovsky said to be attached, as well as 10,000 Ships written by Eboni Booth and Aegon’s Conquest penned by Mattson Tomlin,” Deadline reports.
The site added that “Bloys would not comment on any of the alleged GoT development projects but indicated that the success of the smaller-scale, modestly budgeted A Knight of the Seven Kingdom [sic] is informing their development strategy.”
9 Voyages was initially meant to be a live-action show from Rome and Gotham showrunner Bruno Heller, but Game of Thrones creator George R.R. Martin revealed in 2024 that the show had switched to animation due to budget concerns.
“We have moved 9 Voyages, our series about the legendary voyages of the Sea Snake, over from live action to animation, a move I support fully,” Martin posted at the time.
“Budgetary constraints would likely have made a live action version prohibitively expensive, what with half the show taking place at sea, and the necessity of creating a different port every week, from Driftmark to Lys to the Basilisk Isles to Volantis to Qarth to… well, on and on and on. There’s a whole world out there. And we have a lot better chance of showing it all with animation.”
For more coverage of Westeros, read our spoiler-free A Knight of the Seven Kingdoms Season 1 review, how they made Ser Arlyn of Pennytree’s formidable prosthetic, and discover why GoT actress Sophie Turner can’t even listen to the theme song now without it triggering anxiety for her.







