Who is Anthony Breer in the novel, The Damnation Game?

Among the novel's numerous minor characters, one deserves special mention. Anthony Breer (aka The RazorEater), a creature controlled by Mamoulian, may well represent the most vivid depiction of sadomasochistic depravity to be found in all of literature. The revelation that he is, in fact, a reanimated zombie who has been slowly corrupting throughout the course of the action forms, strangely enough, an effective counterpoint to his role in engineering some of the novel's most violently exotic scenes.