Thatcher is Dot's droll, iracible dog. This canine's goal is to live life on a full stomach, with meals sandwiched between the hard work of napping. He has to be reminded that being taken to the vet for a flea dip does not mean being treated to a meal of those little vermin, deep fried and served with a bowl of guacomole. Thatcher defines the term, "dogging it." He sees no purpose in retrieving a thrown ball. He reasons that if you really wanted the ball, you wouldn't have thrown it away in the first place. Thatcher is obstinant and won't own up to a number of things, including the fact that he misses his old nemesis and next-door neighbor, Com's cat, Ozzie.