Despite all those mentions of Ra's Al Ghul during season two of Arrow, many fans thought we would never actually get to see the well-known Batman villain in the series. Well, he's coming, as you can see from the new trailer below! We don't get to see who will be playing Ra's here and the role hasn't actually been cast as of yet according to those working on the series, but The CW have been picking some very recognisable names for these roles lately, so expect it to be a familiar face. It's an exciting time to be a fan of Arrow as a number of characters from the comic books will be making their live-action debuts this year, including the recently confirmed Wildcat! Ra's Al Ghul was last seen in Batman Begins, played by Liam Neeson. Check out the teaser below...