- "Derrown. Known simply as: The Exterminator."
- ―Count Dooku
Derrown was a male Parwan bounty hunter who was regarded as one of the best bounty hunters in the galaxy during the time of the Clone Wars. His ruthlessness and efficiency in getting things done earned him the alias: "The Exterminator".
Derrown primarily wielded a pair of custom-made blaster pistols and what appeared to be a shoulder-mounted blaster. In addition, he carried multiple explosives, which were slung and held on his body armor. Because of his Parwan traits, he often made use of a jet pack to get around areas more quickly. Derrown, himself, could be considered a weapon due to the fact that he could literally electrocute and incapacitate someone with the touch of one of his tentacles.
Derrown's skills as a bounty hunter caught the attention of Dooku and he was later invited to compete in a challenge on Serreno. Derrown accepted the invitation and traveled to the designated planet where he met up with several other bounty hunters. He later entered the Box, where he competed and survived all of the challenges. During the third challenge, Derrown injected himself with an electro-magnetic serum, which allowed him to pass through the electrified ray shields and deactivate them, ultimately saving the lives of the remaining bounty hunters.
Crisis on Naboo
Derrown, having survived the challenges of the Box, was hired to help in the capture Chancellor Palpatine of the Galactic Republic. Infiltrating Coruscant via the docks, Derrown assisted in assassinating the supervising workers and later disguised as a Senate Commando using a Holographic disguise matrix. He was assigned to take down the shield that guarded the Chancellor. Bypassing security forces, Derrown succeeded in his part of the plot but was forced to do battle with Jedi Knight Anakin Skywalker. During their brief skirmish, Derrown used his blasters to fire at Anakin only to have them sliced in two by his lightsaber. Derrown was then able to subdue the young Jedi by electrocuting him with his tentacles. He then attempted to make an escape using his jet pack but his flight harness was shot by Obi-Wan Kenobi, disguised as Rako Hardeen, causing him to spin out of control to the ground however Derrown somehow surrvivied the fall.