Maul

Maul is a major character in the series, starting off as an antagonist, but becoming more of a protagonist in later seasons.

Personality
Maul is portrayed as less murderous and deceptive in The Ezra Stardust Show than he is in Star Wars. He is however, clingy, emotionally unstable and has trust issues. He also has a form of PTSD - as evidenced in 'Borderline' - because of his traumatic childhood and frequently has panic attacks because of this. Despite his mental health issues, Maul tries his best to help everyone out, stating to Ezra (the gray Jedi) that he doesn't want to be a burden. He tries to offer emotional support to his brothers, although he ends up receiving it more than they do.

Relationships
Maul has a rather shaky love/hate relationship with Obi-Wan, a strong and surprisingly stable bond with his brothers and eventually gains custody of Ezra Bridger after a long and gruelling courtroom fight with Jedi Knight Kanan Jarrus. He is notably more mentally healthy in 'Apocatlypse' when he teams up with Ezra and saves the town from the Giant Cats.

Maul cares deeply for each of his friends, despite coming off as cold and distant. He wants to be a good mentor for Ezra, but is constantly paranoid that Ezra might reject him.