The first photo of Harley Quinn from the set of Arrow was revealed by Michael Rowe, who plays Deadshot on the show, via his Instagram account.

The Joker from the Dark Knight to Appear in Episode 19?

Rowe posted a cast photo from the filming of episode 16, Suicide Squad, wherein Quinn made a cameo. In the shot fans finally get to see the face of Arrow's version of Harley Quinn. Tara Strong (Teenage Titans) played the part of Quinn on the show. She is seen tilting her head and and smiling wearing the squad's yellow jumpsuit, with a painted face, her scruffy blond hair worn in messy pigtails.

Since she made a brief appearance, speculation's running rife that the Batman villain will be making a more impactful comeback.

Thea Kidnapped By Slade, Learns Big Secret About Oliver that Creats A Rift in Episode 18? 

In Suicide Squad viewers didn't quite get to see Quinn's face and all that was accesible was her voice. While people were still unsure if that was the great Quinn herself, as the character was described as the "deranged squad female" executive producer Marc Guggenheim confirmed that it was the Batman villain indeed.

But Guggenheim also recently dismissed rumors of Quinn's return on the show, saying she was only used as a tease, calling her an "Easter egg."

Detective Lance Finds Out About Oliver's Secret in Episode 19? 

In a recent interview with Collider the producer dashed fans' hopes of seeing Quinn play a more integral role on the show.

"She was always intended to be an Easter egg. I don't want people to go in with incorrect expectations and walk away from Episode 16 disappointed," he said. "But there is an element to the Easter egg that was not spoiled by the promo, that I think people will find a lot of fun."

Watch the Harley Quinn cameo in the episode:

Tags: Arrow season 2 Harley Quinn