EXCLUSIVE: George R.R. Martin, on whose fantasy book series HBO‘s hit drama Game Of Thrones is based, has signed a two-year overall deal with the pay cable network. Under the pact, Martin will continue as co-executive producer on Game Of Thrones, whose Season 3 premieres March 31. Additionally, he will develop and produce new series projects for the network. Attached to Martin’s upcoming HBO development is his long-time representative, manager Vince Gerardis. In addition to co-executive producing Game Of Thrones, Martin has written multiple episodes of the fantasy series. His TV writing credits also include The Twilight Zone and the original Beauty And The Beast. He is with WME.

Game Of Thrones quickly established itself as HBO’s next flagship series, combining ratings and critical success. Its most recent episode, the second-season finale in June, drew a series-high 4.2 million viewers in its premiere airing. For Season 2, GOT averaged gross audience of more than 10.4 million viewers per episode across various platforms.