Things are about to get a bit crazy over on Gotham, pudding. If you have caught up with the superhero drama, then you should know Fox is tapping into DC Comics’ iconic villains in a big way. Baddies like the Riddler and Penguin are focal characters on the show, and it seems like a few femme fatales are on their way. The season three finale of Gotham promises to tie-in Catwoman to the show in a big way. And, now, one of the show’s stars has confirmed Harley Quinn will be added to the show sooner rather than later.

In an interview, David Mazouz chatted with Movie Pilot about Harley Quinn and whether the character would be added to Gotham. When asked when the vixen would make her debut, the Batman star said it was coming up fast.

“She’s going to be in the finale,” Mazouz revealed. “Stay tuned.” Well, there you have it. Gotham isn’t playing around when it comes to its villain collective, and Harley Quinn will ensure the baddies keep in line. The fan-favorite fatale is coming to Gotham whether you like it or not, and the revelation has got fans buzzing about her appearance.

So far, there is no word on how Harley Quinn will be added to the show, but fans have their guesses. Right now, it looks likely that Barbara Kean will transform into the psychotic vixen. The character, who is played by Erin Richards, has been associated with Harley Quinn on-and-off. After Barbara did a crazed stint in Arkham, fans were left wondering just when the woman would make a full Harley Quinn turn. Earlier this year, one of Gotham’s producers touched on the idea of Barbara becoming Harley Quinn. In an interview with CBR, Danny Cannon kept coy with his answers, but he did hint the transformation was coming.

All I can tell you is, the great thing, the joy of working with Erin is the range,” Cannon told the site. “The reason we changed her character, [is] because we knew what she could do. We’re like, ‘We can’t keep you in one place. You’ve got to keep evolving.’ So she’s going to evolve again. That’s all I can tell you.” The sneak-preview can be watched above. You can also check out Gotham's synopsis for “Destiny Calling” / “Heavydirtysoul” below:

“With the deadly virus spreading throughout the city, the search for the antidote continues, as Fish Mooney (guest star Jada Pinkett Smith), The Riddler and Penguin reveal plans of their own. Bruce meets Ra’s Al Ghul (guest star Alexander Siddig) and completes his last task in order to fulfill his destiny, but realizes he can’t let go of his past. Meanwhile, Gordon tries to win back Lee, and past alliances within Gotham City are broken, while new alliances are formed in the all-new, special two-hour “Heroes Rise: Destiny Calling/ Heroes Rise: Heavydirtysoul.”” Cast: Ben McKenzie as Detective James Gordon, Donal Logue as Harvey Bullock, David Mazouz as Bruce Wayne, Morena Baccarin as Leslie Thompkins, Sean Pertwee as Alfred, Robin Lord Taylor as Oswald Cobblepot/The Penguin, Erin Richards as Barbara Kean, Camren Bicondova as Selina Kyle/the future Catwoman, Cory Michael Smith as Edward Nygma/the future Riddler, Jessica Lucas as Tabitha Galavan, Chris Chalk as Lucius Fox, Drew Powell as Butch Gilzean, Maggie Geha as the future Poison Ivy, Michael Chiklis as Detective Nathaniel Barnes, Benedict Samuel as Mad Hatter.

Guest Cast: Jada Pinkett Smith as Fish Mooney, Alexander Siddig as Ra’s Al Ghul, Camila Perez as Firefly, Nathan Darrow as Victor Fries/Mr. Freeze, BD Wong as Hugo Strange.”