One of the Zodiac Priests. Capricorn/Pig
Cthukachu is a Thri-Kreen Berserker, who is certifiably insane. He was chosen by Zodiac to be a member of the 12 due to his bloodlust and strength.
Role in the Zodiac War
Cthukachu was used by Zodiac as a randomizer in battle, a wild card to destroy enemy formations in a single charge. In the Battle of the Bleeding Sky, he was kept back until near the end, then sent after Garuun Dar, leaving Connor alone in the final battle. He destroyed most of Connor’s warriors and fought Garuun to a stalemate before his fury left him and he died of his wounds.