Cerberus is a recurring enemy in the Biohazard (Resident Evil) series, known for being a ferocious, zombie-like dog mutated by the T-virus. Often appearing as a dangerous threat in the early stages of the games, Cerberus is memorable for its speed, aggressiveness, and haunting appearance, typically resembling a decaying Doberman Pinscher. As a bioengineered creature, it plays the role of one of the first mutated monsters encountered by protagonists, heightening the horror atmosphere and setting the tone for the series’ survival challenges.