Who is Roy from Junky and what is their importance?

Roy is one of the first junk users that Bill meets during the novel. Bill describes him as having a slack jaw, a vacant look, and smooth brown skin. Roy's cheek-bones are high, giving him a vaguely oriental appearance, and his ears stick out at right angles from his asymmetrical skull. Roy has brown, brilliant eyes. Roy meets Bill and begins to buy stolen morphine from him. Later, Bill begins to use morphine and Roy strongly urges him to resist the drug.