It wouldn’t be the first time Looney Tunes and DC Comics have crossed over.

DC Universe has finally unveiled a first-look full-length trailer for upcoming animated series Harley Quinn. The voice cast is impressive with Kaley Cuoco, Alan Tudyk, Giancarlo Esposito, and Lake Bell leading the way and supporting cast including Wanda Sykes, Christopher Meloni, Tony Hale, and so, so many other great actors. The trailer, which debuted at San Diego Comic-Con on Saturday, July 20, is dead-set on making sure folks know this is an adult animated series and kids should definitely stick to something else. Proof of this is Harley's (Cuoco) first line in the trailer, "It'…