You'd think one of the fundamentals of being a cold-blooded assassin would be that you're actually able to look at blood, gore and generally able to stomach killing a person. Arya's got no qualms about a good spot of murder, but Williams doesn't share the same vigour for violence. The actress will happily partake in the scenes, though when it comes to watching the show (or any other TV series/film for that matter) she has to cover her eyes, fast-forward, or use any of the other tricks to avoid an eyeful of death.