Leto will reprise the classic DC antagonist in an upcoming series of "Justice League" by Zack Snyder. He has already played Joker in 2016's "Suicide Squad", has shot for additional footage for the Snyder Cut, reports hollywoodreporter.com.
The project, officially titled "Zack Snyder's Justice League", is being overseen by HBO Max, and will air as a four-episode event series next year.
Shooting of the project is currently underway with Ben Affleck, Ray Fisher and Amber Heard, along with Leto. The rest of the cast hasn't been confirmed.
The film is Snyder's version of "Justice League", the 2017 superhero film he was forced to exit, and subsequently completed by Joss Whedon.
After Whedon stepped in to finish "Justice League", he had changed most of the movie.
Synder has previously directed "Man Of Steel