Maul

Maul (formerly known as Darth Maul) is the secondary antagonist of Rise of Mandalore and the main antagonist of Bond of the Jedi. He was the first Sith apprentice of Darth Sidious and son of Mother Talzin and the master/brother of Savage Opress. After being bested by Ahsoka Tano on Mandalore, Maul lived in exile until he was found by Jedi Padawan Ezra Bridger who he later developed a psychic link with, as revealed in Rise of Mandalore, a retelling of Star Wars Rebels.