While most of the team’s members have been part of the DC universe for a long time, the Justice League Dark team didn’t assemble until the start of the New 52 continuity reboot in 2011.
Outside of the comics, the team has also starred in their own animated movie, which came out this past February and was the second DC animated movie to be rated R (the first being Batman: The Killing Joke).
Just like in the comics, Justice League Dark will revolve around supernatural heroes like John Constantine, Zatanna, Swamp Thing, Deadman and Etrigan the Demon battling forces threatening our world that normal superheroes like Superman, Batman and Wonder Woman can’t handle.