The Flash’s DCEU Origins Teased In Justice League Promo
Though we know he is recruited by Batman (Ben Affleck) to join his superhero squad, we know little about Barry Allen’s canonical background and origins in the DCEU. Based on Batman V Superman, it appears that Bruce Wayne first learned of The Flash through Lex Luthor’s (Jesse Eisenberg) secret files – which also had short surveillance clips of Wonder Woman (Gal Gadot), Aquaman (Jason Momoa) and Cyborg (Ray Fisher). While we now know Diana’s DCEU backstory, Arthur Curry’s backstory will be explored more in next year’s Aquaman, whereas Victor Stone’s origins look to tie into the plot of Justice League. That leaves the question of how The Flash came to be in the DCEU.