Darth Maul was a Dathomiri Zabrak Sith Lord during the waning days of the Galactic Republic. A brother to Savage Opress and Feral, Darth Maul and his kin were part of a clan known as the Nightbrothers, who lived apart from the mainstream Zabrak population on the planet Dathomir, subservient to the Nightsister witches. As apprentice of Darth Sidious, he was taken at an early age to be trained in the ways of the dark side of the Force. In 33 BBY, Sidious gave Maul his first mission; put the criminal organization Black Sun in disarray. Maul carried out this task perfectly, dealing the group a grievous blow.
Maul played an instrumental role in the Blockade of Naboo in 32 BBY. The crisis was engineered by Darth Sidious, who lived a double life as Senator Palpatine of Naboo, to have Supreme Chancellor Finis Valorum removed from office, allowing Sidious to take his place and set the stages for a Sith influenced government. After Padmé Amidala, queen of the Naboo, escaped the blockade, Maul was dispatched to follow her. He found her on Tatooine, where he had a short but intense duel with the Jedi Master Qui-Gon Jinn. Later, Maul was sent to Naboo, where he fought Jinn and his apprentice, Obi-Wan Kenobi. Though he killed the Jedi Master, he underestimated Kenobi’s skill and was severed at the waist by the Padawan. Sidious would quickly replace Maul with a more powerful apprentice: the late Qui-Gon Jinn's fallen former master Dooku, dubbed as Darth Tyranus.
In 0 BBY, Darth Vader encountered either a clone or dopplegänger of Maul created by the Secret Order of the Empire, possibly under orders from Sidious. Maul believed that he could easily defeat Vader and serve under the Emperor once more. However, he was eventually slain by the fallen Chosen One.
Darth Maul was a fierce warrior, able to easily engage a Jedi Master and Padawan in battle.Darth Maul was a highly skilled lightsaber duelist, trained by Darth Sidious in Juyo, which drew heavily on volatile emotions and the dark side. However, Maul only devoted himself to Form VII's physical focus, desiring pure physical victory, rather than the "higher" Sith tradition of Dun Möch; dominating the opponent's spirit and exposing his inner doubts through taunts and psychological warfare. In addition to this, Maul had training in Niman lightsaber combat and the Jar'Kai dual-saber technique