Gregory M. Wilson (Rule of Rose)

Gregory "Greg" M. Wilson, also known as Stray Dog later on, is one of the main characters of Rule of Rose. He is the final boss. He is responsible for murdering the orphans of Rose Garden Orphanage, with the exception of Jennifer.
During the game, he occasionally meets Jennifer and hands her one of his homemade storybooks, which usually contain dark and sadistic plots, addressing her as "Joshua". According to the manual, he would give the children treats, presumably candy, akin to the Stray Dog legend.