Fan Casting Johnny Quick in Justice League: The Looking Glass

Johnny Allen was a petty thief in Central City, at least until the day when, while on the roof of the S.T.A.R. Labs, he was struck by lightning that shattered the roof, causing him to fall amidst chemicals that gave him super speed. - What's funny?, asks Barry at one point, after managing to capture him. - Sometimes Barry, we know that even if we fix things, they will never stay the same. The film leaves the question open, but everything indicates that, at some point, Johnny Quick was responsible for a kind of 'Flashpoint' that created an amalgamation between Earth 50 (home of the original Justice Lords) and Earth 3 (home of the Crime Syndicate), something only he knows.