Darth Maul

Darth Maul was an Irodonian/Zabrak Sith Apprentice to Darth Sidious.

Origins
Maul was found alone as a child surviving on the streets by Sidious who saw potential in him and trained him to become a weapon for the Sith.

Role During the Naboo Crisis
In 32 BBY (10 BBG), the Trade Federation occupied the planet of Naboo. This was a move masterminded by the Sith to instigate their greater plan of a Galactic War. During this event, Maul was tasked as an enforcer of his Master Darth Sidious. His role. in particular. was to aid the Trade Federation in dealing with the Jedi tasked by the Republic as arbiters in resolving the conflict.

Hunt for the Jedi on Tatooine
During the occupation of Naboo, Darth Maul was tasked by Darth Sidious to chase down the Jedi guarding the young Queen Amidala who had escaped to Tatooine.

Duel on Naboo
Maul engaged in a duel with Qui-Gon and Obi-Wan, the first of whom he killed, but Obi-Wan was able to defeat Darth Maul. Obi-Wan bisected Maul with his Master's lightsaber, causing Maul to fall in two to the depth of the energy shaft.

Significance
Following the two encounters with Maul, the Jedi were now aware of the Sith, who they had believed up to that point extinct. Now, they were unsure whether Maul had been the Master or the Apprentice.

Combat Skills and Weapon
Maul was specially trained in lightsaber combat and wielded a dual-bladed lightsaber (or double-saber).

References