Director Rian Johnson [Brick] is casting actors for sci-fi killer thriller Looper, Paul Dano [There Will Be Blood] is the most recent actor to join ship. Looper is described as a dark, violent thriller that follows a group of hit men who use time-travel to hide their actions. These “Loopers” wait for their bosses to send back chosen victims from the future, and then dispatch them in a time period where no one can identify them. The film so far stars Brick’s Joseph Gordon-Levitt alongside Bruce Willis and Emily Blunt. Variety broke the news first but The Playlist has extra details, including the fact that Dano’s character is named Seth and while he doesn’t have loads of screen time, he has a pivotal role in the story as one of Gordon-Levitt’s fellow killers.