Spoilers ahead for the fourth episode of the "Crisis on Infinite Earths" crossover on The CW.
The Arrow-verse has finally returned in 2020 with the final episodes of the five-show "Crisis on Infinite Earths" crossover, and it didn't waste any time in delivering another huge DC cameo. The first three episodes alone delivered some major ones, ranging from DC Universe's Titans turning up to Lucifer's Lucifer lending a hand to Constantine, but the DCEU connection in the Arrow leg of the crossover may be the biggest: Ezra Miller, a.k.a the DCEU Barry Allen/Flash of Batman v. Superman, Justice League, and Suicide Squad, made an appearance.
Ezra Miller turned up when Barry started on a race through the Speed Force to retrieve those of his friends who were lost when he and Spectre-Oliver combined their powers to try and escape the Vanishing Point and challenge the Anti-Monitor. They wound up in what looked like the STAR Labs that Arrow-verse fans know and love, and both were very confused.
Hilariously, Ezra Miller's Flash initially wondered if Arrow-verse Flash was a cosplayer, noting that his Flash suit looks "comfy" and "breathable." Arrow-verse Flash commented that Ezra Miller Flash's more armored suit is "pretty cool" and "safe," and they both revealed their name at the exact same moment. Ezra Miller Flash's mind was blown, and Arrow-verse Barry declared "This should be impossible now!"
I've never agreed with The Flash more! Unfortunately, Ezra Miller Flash faded away before Arrow-verse Barry got any more details, but not before dropping one last line for DCEU fans: "I told Victor this was possible!"
Was this cameo absolutely necessary for "Crisis on Infinite Earths" to make sense on The CW? Nope! Was it a cameo that few fans probably thought was actually possible because surely the DCEU wouldn't share a star with The CW? I'd say so! In fact, this makes me feel a little bit better about the Flash-y portions of "Crisis" that were kind of a letdown. And hey, can we count that as the Arrow-verse's biggest Cyborg shoutout to date?
The appearance of Ezra Miller as The Flash in the Arrow-verse certainly raised the sakes for the final two episodes of "Crisis on Infinite Earths," which I would argue is what the crossover needed after a month of hiatus.
Admittedly, the Ezra Miller twist wasn't spoiled via social media en masse, so it wouldn't have been a hook to grab in DCEU fans who might not be regular Arrow-verse viewers, and the final two episodes aired back-to-back, so Miller's appearance couldn't have boosted crossover ratings. It was pretty much a treat to people already tuning in.
The Arrow-verse returns to business as usual (with scheduling, at least) following "Crisis on Infinite Earths," although only two episodes of Arrow remain, and one of them won't feature Stephen Amell at all. Be sure to tune in to The CW on Tuesdays at 9 p.m. ET to catch the last two installments before the final credits roll on the Arrow-verse's first series.