Howard is the quietest grown-up in the gang, and possibly the oldest. This is probably because he's married to Betty, the loudest grown-up in the gang, and it's hard to get a word in edgewise. The DeVilles are the Pickles' next-door neighbors, and Howard likes to drop by and see Stu's inventions. He has been nicknamed "Howie". Howard is implied to be somewhere in his forties, and in All Grown Up!, in his fifties, making him the oldest parent in Rugrats.