Ducard

Captain ducard was the corrupt captain of the guard for the prison at Purge. He arrested and imprisoned his enemies and used yoma as torturers and Victoria/Iron Maiden as an executioner. He sent out the request  for a hunting party, fearful that his secret was exposed. He didn't care at all for his prisoners, telling the hunting party to rescue the guards but leave the prisoners behind to die.

His guards had started to disappear and his prisoners were rioting. Ducard thought this was because there was an awakened being rampaging within the prison, while in actuality, it was the work of Brook and Nixie. Later, he barricades the prison entrance, telling the claymores to stay back since he and his guards could handle "common filth". However, Brook and Nixie break out instead of human prisoners and kill all the guards at the prison entrance. As Brook and Nixie kill his guards, he demanded that Valerie and Sheena help him, to which, they refuse and mock his ignorance, leaving him to die.

When Ducard was the only human left alive, Brook decided to eat him, calling him a virgin delicacy. His request was a complete failure. The prison was destroyed, all the guards, himself included, died, and the awakened being, Victoria, lived. By withholding information from the hunting party and employing yoma which were slain, his benefactors had to pay five times the standard payment for their mission as well as give up 10 of their orphaned children to the organization to become claymores.