Unlike most superhero movies, Suicide Squad is putting villains in the spotlight next month, but it won't entirely without heroes. Batman will be appearing at several points in the movie, including to chase The Joker and Harley Quinn and to fight Deadshot. However, the Caped Crusader may not be the only costumed crimefighter appearing. A rumor has started to gain more traction that The Flash will make a cameo appearance to set up how Squad member Boomerang is incarcerated.
This particular rumor actually surfaced a few weeks ago, but the latest DC movie trailers from San Diego Comic-Con seem to provide more evidence of an appearance. The eagle-eyed folks at ComicBookMovie were analyzing the latest Suicide Squad trailer and noticed a moment (at the 2:25 mark) that shows Jai Courtney's Boomerang being knocked back by a blast of lightning. This lightning looks just like the one Barry Allen releases in the Justice League footage when he's dodging Bruce Wayne's Batarang and suited up as the Scarlet Speedster. You can check out the screen shot of Boomerang below in case if flashed by (pun intended) too quickly for you.
While this lightning obviously isn't concert proof for a Flash appearance, having the speedy hero show up would make sense. Captain Boomerang is one of The Flash's oldest enemies in the comic books, debuting in 1960's Flash #117. While Boomerang has been more associated with the Suicide Squad in recent years, he still pops up every now and then to give Flash trouble. It's been said that Batman is responsible for defeating all of the Squad members in the DCEU, but it would make more sense if Flash was responsible for Boomerang being sent to prison.
It's worth noting that there is another instance in Suicide Squad where moviegoers will see lightning. At some point during the movie, the team will come across some kind of shrine where lightning is being blasted into the sky. However, the area where Boomerang gets blasted off his feet looks like it's inside of a building rather than inside the train station were The Adversary's forces are at work. The common speculation at the moment is that we'll see Boomerang committing a bank robbery (judging by the bag in his hand), but Flash races in to stop him.
Does this mean Ezra Miller will actually be seen in Suicide Squad? Not necessarily. This is the Fastest Man Alive we're talking about, and the movie could easily just represent him through the lightning and a blurry figure rushing by. Nevertheless, after seeing Barry Allen's speed at work in Batman v Superman: Dawn of Justice, a Suicide Squad cameo would set him up as a fully established superhero before Justice League next year and his solo movie in 2018.
With or without a Flash appearance, Suicide Squad hits theaters on August 5.