Briegel is an adult male with short, black hair, who enjoys hunting. He is a rather timid and apprehensive individual, as indicated by his reluctance to enter the Werewolves' Forest with Reinald, because he heard that the forest is cursed. He was also intimidated by the village crone. After an encounter with a werewolf and being exposed to mustard gas, Briegel goes insane.
Emerald Witch Arc
Briegel and Reinald are hunting on horseback in Southern Germany. They have their dogs chase a fox, which escapes into the Werewolves' Forest. Reinald deems it an exciting challenge and encourages Briegel to enter the forest with him. Briegel is concerned, stating that the forest is supposedly cursed, but Reinald dismisses it as a mere old wives' tale. Shortly after the pair ride into the forest, the village crone appears, exhorting them to leave because the werewolves who protect the forest will curse them if they find them wandering the premises. Briegel is frightened, but Reinald maintains his composure; he remarks that the village crone is senile and urges Briegel to make haste. Blatantly disregarding her warning, they continue to roam the forest and discover their dogs by a bush. Briegel is perturbed, upon realizing that the dogs are growling at something resembling a werewolf. Reinald and Briegel scream and hurry out of the forest, back to the Reinald manor.
At the outside of the manor, they pant, try to collect themselves, and question if what they saw is a werewolf. They are startled when Reinald's name was called, but feel relief when they recognize that it is just two servants, a butler and a maid, coming out to greet them. The butler, then, notices that Reinald is bleeding from his nose. At this point, Reinald collapses. Briegel turns him around, only to see that Reinald has developed grotesque bumps on his face. The same bumps grow on Briegel's face soon after, and he, too, collapses on the ground. The horrified servants shriek. Reinald dies, and while Briegel survives, he is distraught and deranged; he continuously shouts that "the wolfman's coming!" Afraid that he may be contagious, German government officials have transported him, along with Reinald's corpse, to a major institution.