Major Hadden was the leader of SG-12 during the return mission to the Sodan world of P9G-844, and Conway, Stevens, and Lieutenant McKenzie served under his command. The power of the Prior had caused a madness in the Sodan warrior Volnek, driving him to brutally kill his own people, and Teal'c and SG-12 arrived to find the Sodan slaughtered and their village burned. Hadden ordered Conway and Stevens back to the gate to request medical support, but they too came under attack by Volnek, who had shielded himself with the Sodan cloak. Stevens was killed and Conway was badly wounded. As reinforcements arrived, Major Hadden cooperated with Teal'c, Colonel Reynolds, SG-3, and SG-22 to defeat Volnek and to offer medical assistance to Haikon, the sole survivor of the Sodan.
Portrayed by: Doug Wert
Cross Reference: Conway, SG Teams
Episode Reference: Arthur's Mantle