Opal Otter is the wife of Ernest Otter and the mother of the three kids, Peanut, Jelly, and Butter. Opal has lived on Lake Hoohaw for her entire life. Before her sister Anna moved to Howdydoo Island, Opal often hung out with Shirley Duck and Betty Lou Beaver. When a new otter, Ernest, moved in from the city, Opal was resistant at first to get to know him. However, when she gave Ernest a chance, she ended up getting married to him. While Opal is more of the serious type, unlike her husband, you could still say that the two of them are a perfect couple. Sometimes during the evening, Opal and her family hang out on their dock and talk about their day.