Demioch

Demioch was a a member of Tassadar's expedition to the Koprulu Sector, specifically the 7th Fleet under the command of Executor Andraxxus. Arriving at the Terran world of Brontes, currently reeling from an invasion by the Zerg, the Protoss proceeded to deal with it. The planet's space platforms having been secured, Demioch was dispatched to the surface along with his daughter Edullon and the Archon Aedus/Xerxes.

Demioch did not enjoy the same success as his fellow commanders, being captured by the rebel group known as the Fist of Redemption, under the leadership of the Ghost Atticus Carpenter. He was rescued by Edullon however, with the assistance of Charlie Vane. As it turned out, Edullon had made an alliance with the Colonial Militia, an alliance that Demioch found himself part of. Matters became even more complicated when Edullon criticized the heavy-handed actions of Aedus/Xerxes, getting herself branded a traitor by Judicator Syndrea as a result. Regardless, Demioch, along with Edullon and the remains of the Colonial Militia, proceeded to attack Carpenter's forces, who were now in control of the Zerg Incubus Brood.

Although the attack was succesful, the allied Protoss and Terran forces had to deal with Zerg reinforcements. Formally making an alliance, the Protoss and Terrans sought aid from Andraxxus. However, the Zerg descended upon them en masse when they arrived. All those present were killed, Demioch among them.