Batman vs. Superman Joker Conspiracy ... SOLVED(ish)!

TMZ TV
052314_tv_collen_mobley_launch_v2Rumor is the Joker will be back in the upcoming 'Batman vs. Superman' movie ... and we now know without a doubt who will be playing the super villain -- it's Aussie actor Callan Mulvey!

100%. Maybe. Possibly. Well, at least one of camera guys is willing to bet a lot on it. 

tmz-on-tv-3