Gaihawk (ガイホーク Gaihōku) is one of the founding members of Deathsaurus' Breastforce. Gaihawk carries a burning hatred toward the Autobots after spending years on the prison moon of planet Micro. This raging hatred accompanied with his raw power makes him a formidable opponent for anyone who dares to get in his way. He can combine with his fellow Breastforce warriors to form Liokaiser.