ultraman_belial
An evil Ultraman, arch-nemesis of Ultraman Zero and father of Ultraman Geed. Debuted in the Ultra Galaxy (series) sub-series, serving as one of its main antagonists during the Reiblood Era, before becoming the main antagonist in Ultraman Geed (series). The leader of the DARKNESS HEELS villain team.
This tag is also used for his Parallel Isotope clone who debuted in the Ultra Galaxy Fight mini-series, a past version of himself convinced to align with darkness before merging with Reiblood Seijin after being banished (and therefore still in his Early Style).