Clint Quint (almost always known as Mr. Quint) is the oldest of the Quints Quintuplets and an retired fisherman living in the Country with his wife, Mrs. Quint. Another possibility is that he is named after the fisherman in Jaws, Quint.
He can often be found fishing, boating, or anywhere near the water. He is an expert on marine life and aquatics. Quint usually helps George in the Country.