Nemeses

The detective knew that the elusive criminal was his nemeses, always managing to evade capture.

The roadrunner and coyote were nemeses in the cartoon.

The chef's nemeses, a lack of fresh ingredients and poor kitchen equipment, limited his culinary creations.

The cat and mouse were nemeses in the classic cartoon.

The homeowner's nemeses, termites, caused extensive damage to the structure of their house.

The nemeses of the criminal underworld are the police officers who tirelessly work to bring them to justice.