Unlike most comic superhero movies, DC's "Suicide Squad" will focuses on villains instead of heroes, however, it will not be without heroes.

Batman will be appearing in the movie to chase The Joker and Harley Quinn and he will also fight Deadshot. However, Batman may not be the only costumed hero to appear in the villains' movie. Rumors came out saying that The Flash will make an appearance in order to set up how Boomerang, a member of the "Suicide Squad", was incarcerated, Cinema Blend reported.

The rumor about The Flash's appearance came out weeks ago. However, the movie trailer released during the San Diego Comic-Con seems to be providing more evidence of the speedy hero's appearance. Several movie analysts spotted a clue in the lates "Suicide Squad" trailer. They noticed that a certain moment showing Boomerang (Jai Courtney) being knocked back by a lightning blast. The lightning that knocked back Boomerang is similar to the one Barry Allen's The Flash released in the footage of the "Justice League" where he dodges Batman's flying Batarang blade. He also appeared to release the same lightning while wearing his red Flash suit, Comic Book Movie reported.

The lightning scene is not a concrete proof of The Flash's appearance in "Suicide Squad". However, his appearance would not be a complete nonsense considering that boomerang is one of The Flash's oldest enemies in the comic books. The first comic was the 1960's Flash #117. While it was said that Batman defeated all of the members of the "Suicide Squad", it would make more sense if Flash is the one who sent Boomerang to prison.

Also, moviegoers can see lightning being blasted towards the sky. This is the work of The Adversary's forces. However, the area where Boomerang was blasted with a lightning does not look like the train station where the shrine that shoots lightning to the sky is located, instead it looks like inside a building. The most common speculation is Boomerang robbing a bank, judging by the bag he held in his hand, when the flash stopped him.

It does not necessarily mean Ezra Miller will be seen in the movie. Dc could just represent him with a lightning and a blurry figure running by.