A summoner and remnant of Evil Sect, the nebulous cult operating beneath Water Town until a Platinum-ranked hero took it down. He attacked Goblin Slayer's town on the night of the Harvest Festival in a bid to summon Hecantocheir, the hundred-handed giant. Introduced in Volume 3 of the Goblin Slayer series, he was revealed to also be the culprit behind the events that took place in Volume 2.
The culprit behind the disturbance in the city of the Temple of Law, Dark Elf was the one who brought the goblins to the underground sewers and provided them with the necessary guidance and resources for his plan. Dark Elf schemed to depose the Sword Maiden by utilizing her phobia of goblins against her.