Arrow Season 2 Drops Harley Quinn Reference As Gotham TV Show [SPOILERS] Cast Adds Penguin, Selina Kyle, Alfred, And Bruce Wayne: Suicide Squad Promo Excites Fans!

"Arrow" season 2 might be making a crossover reference to the Gotham universe and Batman in the latest Suicide Squad promo.

On March 19, an episode will dive into the much talked about Suicide Squad, and the recent promo has fans talking!

In a brief cut, we see a blonde girl with disheveled hair, and many are theorizing that it is a subtle reference to the famous Batman villain Harley Quinn.

According to spoilers by TVLine, while it is possible that this is a Harley Quinn reference, the mysterious woman shown in the "Arrow" season 2 promo won't actually appear in the episode.

Which is not to say Harley Quinn won't be coming to TV in the near future, as the highly anticipated show "Gotham" is nearing cast completion!

Spoilers by EW confirm that a young Bruce Wayne and Selina Kyle has been cast. Actor David Mazouz will portray the Batman before he become Batman, while Camren Bicondova will portray the Catwoman counterpart.

According to the Hollywood Reporter, "Gotham" is a prequel tale about Commissioner James Gordon and the villains that made Gotham famous.

Spoilers confirm that in addition to Gordon (played by Ben McKenzie), Robin Lord Taylor will portray The Penguin, and Sean Pertwee will join the cast as Alfred Pennyworth.

And who knows, maybe "Arrow" will do a crossover after season 2 with "Gotham," and we get the best of both worlds!

For now, fans should look forward to the Suicide Squad episode on "Arrow" season 2.