Yes, he confessed that he can’t help but do a Darth Vader impression when he walks onto the Game of Thrones set dressed as The Hound — but we also dug deeper when actor Rory McCann visited EW to take our Pop Culture Personality Test. Watch the video below to learn what music gets him fired up (and what it’s like to film an action scene for Oliver Stone), why he thinks twice before watching horror movies, which Game of Thrones costar signed his most prized pop culture possession, and what’s his idea of the perfect summer popcorn movie.