DC's upcoming animated film "Batman and Harley Quinn" has cast "The Big Bang Theory" star Melissa Rauch as the voice of Harley Quinn.

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Director Bruce Timm returns, along with his "Batman: The Animated Series" visual aesthetic, for the film about an uneasy alliance between Batman, Nightwing and Harley Quinn in their pursuit to stop Poison Ivy and the Plant Master.

"I love that Harley is a badass and, beyond that, that she uses her humor as another weapon in her arsenal," Rauch said with regard to her Harley casting (via Empire). "She knows just how to diffuse a situation with her humor, and how to incite a situation with her sarcasm. It's a dream role."

Along with Timm, a handful of other "Batman: The Animated Series" alum are returning for the project. Kevin Conroy, who voiced the Caped Crusader in the '90s cartoon, will reprise his role for the film, in addition to Loren Lester, who originally played Robin in the animated series, who will make a comeback as Nightwing.

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Additional voice actors confirmed so far include Paget Brewster ("Criminal Minds") as Poison Ivy , John DiMaggio ("Futurama") as Swamp Thing, Eric Bauza, Rob Paulsen, Robin Atkin Downes, Mindy Sterling and Trevor Devall.

No official release date has been announced for "Batman and Harley Quinn." The film will be available to purchase on Digital HD, Blu-ray and DVD this summer.