Fan Casting The Batman Who Laughs in Batman V Superman: Gods Among Us - Part I

One night, whilst sleeping in his bed, Bruce begins to have nightmares about his past. During this sequence, we see flashbacks to his and Superman's fight with The Batman Who Laughs in a multiversal lightspeed tunnel, in which, Bruce lost the fight and ended up in the Phantom Zone for nineteen years, which was nineteen minutes in that dimension. To this day, Bruce still hears his maniacal counterpart laughing in his head, despite him being dead for several years at this point in the timeline.