Age: 21. The Shadows Hand. Cassandra Cain is a master assassin that has worked to rebuild the league of assassins as the league of Shadows after the Joker killed almost every member of the league of assassins. She is an incredible fighter and has killed dozens of people as the shadows hand. Despite all of this, she is an exceptionally compassionate individual. She makes sure those who are under her command are treated with respect and tries to keep them out of harms way and protect them if she can. Her forces follow her out of loyalty since she is more then willing to risk her life for them. She is the second in command in the league of shadows, with her mother being the other leader. She cannot speak, so she only uses sign language. She also writes in her journal.

The Joker is a demon in human skin. Goes by Jack Grimm in public, he is over 200 years old. He is also one of the top ten most richest people in the world. He went to the league of assassins and joined them, he became their best student. However when they would not submit to his rule, especially their leader, Lady shiva, he would kill them all. The Joker imprisons people all around the world in his ARK's, which are these research prisons that are all horrifying to be in. No one knows about the ARK's or that that Jack Grimm is a horrible person, if you can even call him that. The Joker never laughs, ever, unless he is in monster form. The Joker possess the ability to turn into a massive, horrifying demon.

Lady shiva was the leader of the league of assassins. However she would allow Jack Grimm to join them and when she refused to let him take over, he killed almost the entire organization. She is one of the deadliest women in the world. She now leads the new league of shadows with her Daughter, Cassandra Cain, together they wish to gain enough power to kill the joker. She cares deeply about her daughter and worries that she might be too compassionate sometimes.

Selina Kyle is the notorious international thief Catwoman. She is a childhood friend and ex-girlfriend of Bruce Wayne. She is a master martial artist, wears an extremely high tech suit and is going after Cassandra Cain and the Joker for 2 different reasons. Cassandra Cain and the league of shadows stole something from her and she really wants it back. She sometimes works with batman if she really has to. Her suit has an ai named Jonesy. She also has high tech gear like mobile emps, a prehencile tail and knuckle claws.

The Batman (real name Bruce Wayne) is a vigilante who works as a blue-collar civil engineer in his civilian identity. Using an arsenal of personally-crafted weaponry and vehicles, combat expertise, and genius intellect, he works to protect Gotham City from crime and the wealthy interests seeking to exploit its people. He is currently working with the red hood gang to fight the joker. He is also working with an MI6 operative named Alfred Pennyworth to take on larger assaults on the jokers operations. His childhood friends mean a lot to Bruce, so he tries to keep them safe. The bat symbol on his chest turns into a battle axe.

Basle Karlo or Project K.L.A.Y, originating from Ark M's Department of Transmutation and Plasticity. He is one of the Joker's top enforcers and even killed one of the robin program, Tim Drake. A former sculptor and artist, Karlo was subjected to "Project K.L.A.Y." in Ark M, given a serum that would mutate him as part of a monstrous amalgamation of multiple people who have been fused into a mass of molten clay. Upon being released from Ark M, Karlo became enlisted in Dr. Jonathan Crane's plans to turn Gotham City against Batman and make his life a living hell, under Jack Grimm V's orders.

Wally West is The Flash, a teenager given incredible speed in a lab accident at project Olympus. Wally did not have a legacy to follow, a mentor to guide him or even a Speed Force. Instead he was left to figure out his powers alone as his world's first ever speedster. Grodd is a genetically enhanced monkey created by Project Olympus and The Flash's friend and partner. Grodd, along with his fellow primates, was experimented on by Project Olympus personnel. While most of the subjects gained an unusual green coloration to their fur, Grodd also gained a large, visible brain mass on the back of his head and telepathic abilities. They are traveling the country, trying to not get captured.

Jason Todd, codename Robin-2, is a member of the Robin Program. He is the most aggressive member of the team in their mission to capture Batman, and the least concerned with avoiding collateral damage. Jason Todd was orphaned at a young age and was raised by billionaire Jack Grimm. He and a group of Grimm's other former wards were trained by Slade Wilson to ostensibly bring safety and hope back to the blighted city. Jason was given a gigantic mecha armed with a similarly huge assault rifle to pilot. He was right there when Project K.L.A.Y killed Tim Drake.

Tatsu Yamashiro is a member of the League of Shadows, who once tried going after the Joker and ended up being imprisoned in Ark D. She wields the Soultaker. The Soultaker is a sword capable of extracting the souls from those that it kills. She is loyal to Cassandra.