Game Of Thrones: 9 Things We Learned From The SXSW 2017 Panel

4. Arya Was The Hardest Character To Cast, Robert Baratheon The Easiest

Going back to the beginning of the show, Weiss and Benioff spoke about what it was like to cast the series. They revealed that the first two actors cast before starting were Sean Bean and Peter Dinklage, and added that Robert Baratheon was the easiest to cast after auditions because of Mark Addy's performance.

The hardest, on the other hand, was Arya, with Benioff saying: "I remember for Arya that we looked at 300 different girls in England. We just could not cast her. We were sitting in this hotel lobby in Morocco – the only place we could get wireless – and looking at casting videos.

"There was a little thumbnail picture of Maisie Williams. There was just something about that little tiny thumbnail face that just seemed right. She looked about seven. Like she was 12, but going on seven. So we clicked on the audition video and waited about 40 minutes for it to download. When we saw that audition video she was just f**king awesome.”