Max, Bonnie, and their Pokemon teams
Max is the younger brother of May and the son of the Petalburg City Gym Leader: Norman. Max, at first, was a know-nothing "know-it-all" who was proud of his studies until he realizes studying and experience are two different things, thanks to Blue and Gary. He became humbled and less egotistic of his studies. He curious of different Pokemon and their abilities.
Bonnie is the younger sister of the Lumiose City Gym Leader: Clemont. Bonnie is an energetic and cheerful girl. She always excited meet new Pokemon and befriend them. She always love tending and caring her Pokemon friends.
Each of them wants to be a full-fledged Pokemon Trainer and travel all around the world. The laws of the Pokemon world, kids of their age are allowed to own 3 Pokemon, however they're not permitted to travel without supervision, and they're not allowed to enter Gym Battles, Contests, etc. until the age of 10. When Max and Bonnie first met, they were skeptic of each other, they bicker like kids always do. Until soon they became good friends, despite arguing every now and then. They then develop puppy crush for one another.
Max's Pokemon Grovyle - A new Pokemon for Brotherhood. As a Treecko, it envies that Torchic was picked by May and Mudkip picked by Brendan, leaving it all alone. It follows Ash and the others in order to find a human that wants to take it in. Until it finally heard that Max wants a Treecko, and so it delivers itself to Max. It looks up to Ash's Treecko/Grovyle/Sceptile as an older brother.
Gallade - He is the same Ralts in the canon anime. Back as a Ralts, he was severely sick, and Max helped him out by taking him to the Pokemon Center. In canon anime, Ralts went back with his family. But in Brotherhood, he decided to stay with Max and be his Pokemon.
Charmander - In Brotherhood, Ash's Charizard, along with Liza and Charla, visits Hoenn for an important event and run into Ash and the others. It was revealed that Ash's Charizard and Charla conceived an egg together. Charmander was hatched, and it seems to love to follow Max around. It was then decided that the parents let Charmander stick with Max.
Bonnie's Pokemon Dedenne - In canon anime, Clemont caught Dedenne for his little sister Bonnie. In Brotherhood, Clemont helps Bonnie to catch Dedenne, especially after the info from Red and the others that kids of Bonnie's age can be a trainer, along with the other rules. Bonnie gets Dedenne as in canon, except this time, she's his trainer.
Gardevoir - A new Pokemon for Brotherhood. As a wild Kirlia, she loves to play and care for younglings, whether they be humans or Pokemon. She met Bonnie when she separated from the group and without her Pokemon, as well as in trouble, she went to save and protect Bonnie. She then helps Bonnie return to the others, and sees how often Bonnie gets into trouble, she follows the heroes around, until Bonnie caught her so Kirlia can protect her at all times. Kirlia/Gardevoir is like a mother-figure to Bonnie.
Tyrunt - In canon anime, Tyrunt evolved into a Tyrantrum to rescue Bonnie, and it belonged to a scientist so Bonnie cannot keep it. In Brotherhood, it didn't evolved due to it being too young and inexperienced, yet Kirlia saved Bonnie in it's stead. The scientists allowed Bonnie to keep Tyrunt, due to it being attached to her.
