"I've been asked to do a Game of Thrones cameo, they asked me if I'd be interested in playing Theon's sister," Allen said in a Reddit AMA. (Theon is played by her real life brother, Alfie.) "I felt uncomfortable because I would have had to go on a horse and he would have touched me up and shit. Once they told me what was entailed, I said no thanks." Fair. Say no to double incest.