Grimm

Grimm is Giratina's acolyte and a Rowlet that tries to bait and manipulate others into committing a crime that will get them sent to the Distortion World to face Giratina. He feels nothing towards these Pokémon. He has amnesia, as he agreed to give up his former self in order to assist Giratina, but he occasionally gets sudden flashes of past memories, usually being about his home and mother.