Chief Rodriguez is a Spanish police inspector who serves as a persistent authority figure leading the pursuit of Belle, a Great Pyrenees dog wrongfully accused of being dangerous. Physically, he has a heavy-set build and a thin mustache. As the primary antagonist in Belle's storyline, he operates under the conviction that she threatens public safety, driving his relentless efforts to capture her across mountainous terrain. He typically directs operations with his clumsy assistant, Officer Martin.

His law enforcement approach reflects rigid adherence to duty, though marked by impatience and harshness. In one incident, frustration leads him to kick Poochie, Sebastian's small dog, provoking Belle to defend the smaller dog by attacking him. His dynamic with Sebastian remains adversarial due to the boy's protection of Belle, though their interactions are confined to operational chases without direct confrontations.