Zerthimon

In the role-playing game Dungeons & Dragons, Zerthimon is the prophet-leader of a group of humanoids called the Githzerai, cousins of the githyanki, who as one race called the forerunners escaped enslavement by the plane-spanning illithids. The rebel leader named Gith is responsible for the names of both the githzerai and githyanki. Gith wished to lead the people in destroying all Illithids, but Zerthimon rose up and opposed her, believing that she would lead them to evil and destruction. The people fought divided, and when Zerthimon was killed his people fled to Limbo, where they would learn to refine a sense of calm in the middle of Limbo's endless chaos.

Zerthimon's teachings are displayed prominently by the character Dak'kon in the computer role-playing game Planescape: Torment as inscribed on circles that he must unlock like a puzzle.