Wilson Wilson is the Taylor's slightly eccentric neighbor next-door. He has very strange habits and is doing something new every week. The joke of the show is never seeing all of his face. His nose and mouth are usually covered, but it once switched to a ski mask.
Wilson's wife passed away a couple years before Tim and Jill moved in. He is always helping the Taylors solve their problems by quoting great philosophers or authors and explaining how it realtes to them.
Wilson's niece, Willow, lived with him for awhile last season. He dated Jill's psychology professor, Judith, for awhile.