Watch the exclusive interview by O2 International Sim (the sponsor of Belfast Film Festival), with William Simpson, a storyboard and conceptual artist whose role includes designing the appearance of the White Walkers, all the weapons for the show, as well as planning all of the shows most famous scenes.
In the video Simpson reveals what’s it’s like to have such a large role in making one of the most popular shows on television.
Sponsored by O2 International Sim
