The Justice League (DCAU)

Green Lantern is a Japanese-American animated action, adventure, comedy, fantasy and sci-fi film, distributed by HBOMax and produced by Japanese animation studio Trigger

SYNOPSES:
To save his village and planet from the enslavement of a warlord, John Johnz embarks on an epic adventure to recruit Earth's greatest heroes, and along the way he will learn the true meaning of heroism

MAIN CHARACTERS:

 * John Johnz/Martian Manhunter (Shameik Moore): A young peasant native to the planet Mars, he is an introspective and closed boy who doesn't exactly have any goals, until his planet is attacked and he is forced to learn to be a real warrior.
 * Clark Kent/Superman (Joseph Gordon Levitt): A teenager who grew up on a farm in upstate Kansas. After moving to Metropolis, the pressures of high school student life make him awaken supernatural abilities such as super strength, flight, heat vision and icy breath
 * Bruce Wayne/Batman (Henry Golding): A young man from a wealthy family, whose parents were murdered during a tourist trip to the Middle East. He was taken in by monks who trained him and turned him into a martial arts master. When he returns to Gotham, he decides to fight crime as Batman
 * Diana Prince/Wonder Woman (Allison Brie): The princess of the Amazons, who fled to the kingdom of men to live a great adventure, she spent 7 years living together with humans and learning about their culture and customs
 * Steven Scott/Green Lantern (Steven Yeun): Adopted son of former superhero Alan Scott, who received a mystery ring from his father on his deathbed. Now Steven has to learn how to use the ring powers to become a Green Lantern
 * Wally West/Flash (Jeremy Shada): Wally is a teenager who has spent most of his childhood and pre-teen years investigating his mother's death. One day when Wally went to visit his old house, he ended up getting hitted by an lightning and getting infected with radiation from the so-called Acceleration Force. He given to immaturity and impetuousness. He would frequently meet even the gravest threats with a flippant remark, often showing a certain underestimation of the true danger of the situation.
 * Arthur Curry/Aquaman (Chace Crawford): Arthur is a human and Atlantean hybrid who grew up in a coastal town in Florida. His father was a lighthouse keeper and his mother was a general in the Atlantis army.

SUPPORTING CHARACTERS:

 * Lois Lane (Emilia Clark): A young lady from Metropolis who has dreamed of being a reporter since she was a child, she was the first person to interact with Clark at her new school and has a great sense of justice
 * Alfred Pennyworth (Mark Hamil): The Wayne Family's Faithful Butler
 * Commissioner James Gordon (John C. Reilly): A member of the Gotham police who helps Bruce fight crime
 * Jimmy Olsen (Jorge Lendeborg Jr.): Clark's best friend who accompanies him on his adventures

VILLAINS:

 * Mongul (Clancy Brown): He is a vicious tyrant who often forces heroes and villains alike to fight for his amusement and is a shameless sadist, such contempt for innocent life. He is the ruler of War-World, a mobile weaponized satellite created by a warlike race called the Warzoons. Bigger and sturdier than a dwarf star and equipped with weapons able to obliterate planets easily, it was meant to be their ultimate weapon to carve a path of destruction through the universe.
 * Starro (Bill Fagerbakke): Starro is a gigantic starfish-like alien with the ability to dominate an entire populace with ease makes him an incredibly dangerous threat. It was created as a weapon of war by Mongul in order to enslave entire populations of planets