Lieutenant Barber was a member of SG-5 during the mission to P4X-347. The team encountered the strange light in the Goa'uld pleasure palace there and succumbed to its addictive effects. Suffering from withdrawal and depression, Lieutenant Barber committed suicide by running into the stargate vortex as the wormhole engaged, and the rest of SG-5 later died from the physical effects of withdrawal.
Portrayed by: Link Baker
Episode Reference: The Light