Dax Damen was a Terran Dominion marine, who was sentenced to service after he was caught hacking into the records of the Terran Dominion's Ministry of Finance. He was ordered to be resocialized and conscripted into the Dominion Marine Corps. He hacked the resocialization console to keep his memories and personality.
Private Damen was assigned to Meatbag Squadron as a repairman/technician. Damen and Meatbag Squadron were assigned to clear out the Scantid Pirates on Tarsonis in 2505, but were ambushed by feral zerg. He was killed by a hydralisk in the abandoned Ghost Academy on Tarsonis.