Announced during SDCC last July, THR has unveiled not only the first image but details including voice cast for the Legion of Super-Heroes animated film.

The Legion previously played a role in Justice League vs. The Fatal Five animated movie from a few years back. But this time around they’re not merely supporting players but getting the spotlight.

Here’s the official description of the film:

The story picks up as Kara, devastated by the loss of Krypton, struggles to adjust to her new life on Earth. Her cousin, Superman, mentors her and suggests she leave their space-time to attend the Legion Academy in the 31st century, where she makes new friends and a new enemy: Braniac 5. Meanwhile, she must contend with a mysterious group called the Dark Circle as it searches for a powerful weapon held in the Academy’s vault.

The film features as Meg Donnelly as the voice of Supergirl/Kara and Harry Shum Jr. as Brainaic 5 with actors Darren Criss, Matt Bomer and Jensen Ackles respectively reprising their roles as Superman, The Flash and Batman from previous DC animated movies.

Rounding out the voice cast are Cynthia Hamidi as Dawnstar, Gideon Adlon as Phantom Girl, Ely Henry as Bouncing Boy, Robbie Daymond as TimberWolf & Brianiac 4, Yuri Lowenthal as Mon El, Eric Lopez as Cosmic Boy & Chemical King, Darin De Paul as Brainiac & Solomon Grundy, Ben Diskin as Arms Fall off Boy & Brainiac 2, Victoria Grace as Shadow Lass, Jennifer Hale as Alura, Daisy Lightfoot as Triplicate Girl and Zeno Robinson as Invisible Kid & Brainiac 3.

This Legion of Super-Heroes animated movie comes courtesy of supervising producer Butch Lukic, director Jeff Wamester, writer Josie Campbell, producers Jim Krieg and Kimberly S. Moreau and executive producer Sam Register.

Stay tuned for more details including release date information. Long live the Legion!