Aldwin was a Tok'ra operative who had cooperated with the SGC. He joined Teal'c on the mission to rescue Jacob, Martouf, and SG-1 from Sokar, with orders to destroy Netu by launching a weapon at its core. He administered the zatarc testing on Shifu to determine if he was truly the Harsesis, and he conducted orientation training on Revanna for SGC personnel in preparation for the mission to sabotage the summit of System Lords. He was killed in the Goa'uld attack on Revanna.
Portrayed by: William de Vry