Kefflin is one of Netan's most loyal and trusted "seconds" within the Lucian Alliance.
Kefflin was one of Netan's most trusted confidantes and was one of the "seconds" directly below the leader of the Lucian Alliance (10.09 "Company of Thieves"). Kefflin oversaw a large kassa production operation on a remote group of planets on the outskirts of the galaxy. He was reputed to be a brutal killer with a notorious temper. He was also extremely exclusive. Kefflin rarely, if ever, left his command ship. Very few, if any, of Netan's inner circle had ever met him.
Because he was such a recluse, Lt. Col. Mitchell determined Kefflin would be the perfect guy to impersonate after the Odyssey and most of SG-1 was captured by the Lucian Alliance. Mitchell used the Reol ring to convince Netan he was Kefflin and remained undercover amongst the seconds to gather intelligence on Odyssey's whereabouts. Mitchell had to mimic Kefflin's notorious brutality when the waiting Teal'c's cargo ship lost its cloak and Teal'c was captured by Vashin. As Kefflin, Mitchell pretended to torture Teal'c.
--Aurora 12:48, 22 September 2006 (PDT)