Leon

Leon Barker is the leader of a criminal gang known as the Grey Thorns. He claims to have rescued Aiden/Lumi from freezing to death as a baby and adopted her as his daughter, and had been raising her to eventually become the next leader of the Grey Thorns. One fateful day, Aiden was caught during a job, and in order to save the rest of the gang, Leon had to feign knowledge of Aiden to prevent further investigation. The gambit worked, and Aiden took the fall, leading to her incarceration. Three years later, having heard through one of his informants that Aiden was now out of juvie and working as a Pokémon Ranger, he has made it his mission to try to bring Aiden back into the gang and fulfill what he believes is her destiny.

Leon is every bit as clever and charismatic as Aiden, but ten times more. He is a master of disguise and making people listen to what he has to say, and is always scheming for his next big score. He genuinely believes that he is doing the best thing for his daughter, even if she tries to reject him for reasons he does not understand. He is also not above betraying those who outlive their usefulness, and is always planning several steps ahead to get what he wants.