- Game of thrones., HBO Entertainment ; producers Chris Newman, Greg Spence ; co-executive producers, George R.R. Martin, Guymon Casady, Vince Gerardis, Vanessa Taylor ; executive producers, Bernadette Caulfield, Frank Doelger, Carolyn Strauss, David Benioff, D.B. Weiss ; created by David Benioff & D.B. Weiss ; Television 360 ; Startling Television ; Bighead Littlehead ; a presentation of Home Box Office, Season 4, DVD/Widescreen,