Fandoms collided this weekend in London at Star Wars Celebration Europe, with Mark Hamill taking time out to indulge the Bat-fans in the audience and shedding some light on the upcoming, highly anticipated animated adaption of Alan Morre’s seminal Batman: The Killing, where he will once again be bringing the Joker to life as only he knows how. The cherry on top was what happens at the end of the below video (via CBM), channelling the Clown Prince of Crime to deliver one of the movie’s eerie monologues. Check it out below.