In American Psycho (1991), Patrick's brother Sean appears briefly. Paul Denton and Victor Johnson from The Rules of Attraction are both mentioned; on seeing Paul, Patrick wonders if "maybe he was on that cruise a long time ago, one night last March. If that's the case, I'm thinking, I should get his telephone number or, better yet, his address." Camden is referred to as both Sean's college and the college a minor character named Vanden is going to. Vanden was referred to (but never appeared) in both Less Than Zero and The Rules of Attraction. Passages from "Less Than Zero" reappear, almost verbatim, here, with Patrick replacing Clay as narrator. Patrick also makes repeated references to Jami Gertz, the Actress who portrays Blair in the 1987 film adaptation of Less Than Zero. Allison Poole from Jay McInerney's 1988 novel Story of My Life appears as a torture victim of Patrick's. 1994's The Informers features a much-younger Timothy Price, one of Patrick's co-workers in American Psycho, who narrates one chapter. One of the central characters, Graham, buys concert tickets from Less Than Zero's Julian, and his sister Susan goes on to say that Julian sells heroin and is a male prostitute (as shown in Zero). Alana and Blair from Zero are also friends of Susan's. Letters to Sean Bateman from a Camden College girl named Anne visiting grandparents in LA comprise the eighth chapter.