Justice League Dark, the latest animated adaptation of a DC Comics tale and the characters that populate it, will be following up on the success of Batman: The Killing Joke in more ways than one. That Warner Bros. Animation effort was the first R-rated Batman feature in history; Justice League Dark aims to be the second when the next DC Universe Animated Original Movie hits Blu-ray, DVD and Digital in early 2017.

IGN has the first look at a new trailer for the film along with confirmation of its R rating "for disturbing violence." Also on display is plenty of magical, mystical mayhem. The title team exists to take on the supernatural threats that are every bit as deadly and dangerous as those that plague the Justice League, but also come with a bonus demonic twist. Batman is the sole character to occupy both teams as he walks within both worlds and exists as a sort of liaison between the two groups. Besides, no one's going to tell Batman he can't get in on the fun.

New cast members include Jeremy Davies as Ritchie; Enrico Colantoni playing Felix Faust; Alfred Molina as Destiny; and Roger R. Cross pulling double duty as both Swamp Thing and John Stewart, a.k.a. Green Lantern. They'll join these existing cast members: Batman's Jason O’Mara, Constantine's Matt Ryan (reprising his short-lived live-action TV series role), Zatanna's Camilla Luddington, Deadman's Nicholas Turturro, Jason Blood/Etrigan's Ray Chase, Superman's Jerry O’Connell, and Wonder Woman's Rosario Dawson.

Watch the new trailer for Justice League Dark below:

Here's the synopsis for Justice League Dark:

Justice League Dark finds the world under attack from supernatural forces that prompts the Justice League's Batman to seek aid from occult investigator John Constantine. Constantine forms a team of other supernatural superheroes -- Swamp Thing, Deadman, Zatanna, and Etrigan the Demon -- to help save the world.

Justice League Dark is directed by Jay Oliva (Batman: The Dark Knight Returns) from a story by J.M. DeMatteis and Ernie Altbacker (Green Lantern: The Animated Series), who also wrote the teleplay. James Tucker (Batman Bad Blood, Batman: Return of the Caped Crusaders) acts as Supervising Producer with Benjamin Melniker and Michael Uslan as Executive Producers, with Sam Register.

For more on Justice League Dark, take a look at some of our recent write-ups below:

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Image via Warner Bros. Home Entertainment
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Image via Warner Bros. Home Entertainment
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Image via DC Entertainment