With his glasses off, his orange cat eyes, a reference to Michael Jackson's Thriller.
The first game
The alternate costumes in the GameCube remake are seemingly random film references. Jill gets a tank top, fatigue pants, and yellow-tinged safety goggles, which is meant to recall Linda Hamilton in Terminator 2. Chris and Rebecca, for no obvious reason, are dressed like Brad Pitt and Julia Roberts's characters in The Mexican.
The opening to the Gamecube Remake, with the covered corpse rising and being immediately shot,is a shout out to Lucio Fulci's Zombie 2, which opens with a very similar shot.
Both Jill and Chris receive new alternate costumes in Deadly Silence. Jill's is a white wife-beater, a police hat, and a pair of very short cut-offs, which very much resembles Poison's outfit.
The virus-infected crows that peck unfortunate victims (such as Forest) to death may be a shout out to The Birds.
The Chimeras, human-fly hybrids, are a clear reference to Chronenberg's The Fly. Supplemental material even confirms they are born from human women injected with human/fly embryos, which parallels Veronica's fears of her baby would be like.
In fact, pretty much every enemy in the game is a reference to some film. The Neptune is clearly inspired by Jaws. The Hunters are basically Velociraptors with their "clicky" walk and ability to open doors. Giant spiders were a staple of the 50's giant monster movie genre. And, of course, the zombies come from Romero's film franchise.