John Cleese puts his zaniness to good use in a two-part guest shot as a new professor who's even nuttier than Dick. And smarter. He's hotshot Dr. Liam Neesam, and he's a little too good at everything he does. He makes his first appearance in Part 1, as Albright (Curtin) is getting fed up with the fact that Dick -- and the rest of the Solomons, for that matter -- are ""weird."" ""It's like being around the Addams Family,"" she moans. So Dick sets out to make his brood ""average,"" and succeeds so completely that Albright finds him boring. Enter the off-kilter Dr. Neesam, who she thinks is kind of charming.