Although Deathstroke has been done to death in the TV department of late, he'd definitely make for a great henchman-type figure in the Justice League movie - a 'street-level' foe to go toe-to-toe with Batman or Wonder Woman, reporting to whatever big bad they end up wanting to use (within the realm of reason, of course). The character's design is awesomely iconic (it's also already been shown to be a believable outfit on screen), and who doesn't want to see a million-dollar throwdown between Deathstroke and Batfleck? Who Should Play Him? John Hawkes has not only the acting chops and a suitable sense of menace about him to pull off the role (just check out Martha Marcy May Marlene), but also that sweet goatee.