Goldman worked with George R.R. Martin, with Goldman and Martin working together to write the story, and then Goldman writing the teleplay herself. She also serves as showrunner. The series is in the same hands as Game of Thrones, with Goldman and Martin serving as executive producers along with Daniel Zelman, James Farrell, Jim Danger Gray, and Game of Thrones executive producer Vince Gerardis. Chris Symes will co-executive produce.
That’s a lot of executive producers, and it’s unclear as to exactly whom will be doing what, especially since the title “executive producer” can mean as much as “running everything” or as little as “we are contractually obligated to name this person as executive producer and give them money for whatever reason even if they don’t actually do anything”.
Goldman, however, appears to be one of those hands-on types. Her series is one of five “Game of Thrones” projects that has been in the works at HBO. Each project is a prequel rather than a spinoff or parallel story, so none of the current cast of main characters will be involved in any of them. Martin has also ruled out fan theories that any of them will focus on his characters Ser Duncan the Tall and Aegon the Unlikely, or Dunk and Egg as they are popularly known, and has also confirmed that Robert’s Rebellion will not be the subject of any of the prequels.