General Trilo

High Priest Darom (大神官ダロム) is the leader of the High Priests. He has a pale, white face. He can manipulate others by just pointing at them.

After losing the power of the "Stone of Heaven" within him, he becomes the Grand Mutant Darom (大怪人ダロム), a trilobite-like creature. In this form, he can discharge laser beams from his fingers and use his feelers like ropes. Following Baraom and Bishium's death, Darom attacked the ex-Shonen Warriors until Kotaro arrives and transforms into Kamen Rider BLACK and fights Darom until Shadow Moon arrives.

After Shadow Moon defeated Kamen Rider BLACK, Darom is sent alongside Bat Mutant to find Kamen Rider BLACK's body. Darom finds Whale Mutant's cave and finds out that he's been revived by the revival ceremony done by Whale Mutant's tribe. Darom and Bat Mutant then had some Gorgom worshipers capture Whale Mutant as bait for Kamen Rider BLACK.

After Kamen Rider BLACK threw himself in front of Whale Mutant, he then used his King Stone Flash to deflect Darom's attack before killing him with the Rider Kick.