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Geras: Reborn at the start of the New Era, Geras remains immortal and unkillable. He retains all the memories of previous timelines. In the New Era, Liu Kang has tasked Geras with guarding the Hourglass to make sure that the New Era runs smoothly. If anything goes off the straight and narrow path, Geras is there to deal with it. With multiple threats rising, Geras has stepped up to the plate... but to insure the New Era stays safe, he needs to figure out who wants to destroy it.
Havik: A citizen of the realm of Seido, Havik has sworn to take down the regime and free the people. In Seido, order is prized above all else. Even the most minor of crimes are dealt with harshly and the citizens live in a caste system. As part of the lowest caste, Havik had no rights or privileges - he seethed in anger at the injustice of it all. When he was harshly punished for a minor crime, he had enough. It is time - time to destroy the regime and free the people so they can all live in a blessed anarchy ridden utopia.
Ashrah: As a demon of the Netherrealm, all Ashrah knew was pain and violence. She assumed that all the beings in the other realms lived in that same manner... but once she left the Netherrealm to visit other realms, she saw the error of her ways - the other places had such beauty and peace that she could no longer aid in the defilement of these places. So, she fled from her sisters. Along the way, she found an enchanted Kriss that was powerful enough to slay her pursuers. She was shocked to see that with each demon killed, her soul was starting to become purified and if she continues to slay demons, she could free herself from the Netherrealm. She senses that her time to reach the light has finally come.
Reptile: Reptile is a Zaterran, one of the reptilian races that live in the outer fringes of Outworld. Like other species, the Zaterrans can camouflage themselves - but Reptile has a mutation: he can shapeshift into a human being. Bullied by his fellow Zaterrans, Reptile left his home to make his future elsewhere.