Fan Casting The Talon in Batman: Court of Owls

Even though he received orders from Lincoln to kill Batman, it's fair to say that Talon is the true antagonist of the story. A highly skilled assassin from the Court of Owls, who claims to have already killed several members of the Wayne Family, being, for example, possibly responsible for the murder of Alan Wayne, Bruce's great-great-grandfather. William in the end is defeated after a lot of effort from Bruce and his allies, but without a doubt he did a lot of damage before that happened, having been the Talon responsible for stabbing Bullock, in addition to almost killing Selina and Tim Drake.