I was watching the Talent Show episode (last episode of S2) and the credits were rolling at the end. I noticed that Pat Van Patten was listed as doing the choreography. I assume that's Dick's wife who was a dancer. Interesting.

I know that a couple of Dick's sons were in episodes as well. Jimmy was in the episode where the kids have a big party (while Tom & Abby are away) in S2. Nels was in the episode where the Joanie, Susan and Nancy move out of the house in S3. He comes out of the bathroom in only a towel and shares a scene with his dad Dick. Nels is also in another episode in S4. He appears as bellboy with Betty Buckley in the episode "memories". I don't believe Dick's youngest son Vincent was ever in any episodes.

Does anyone else know of any other appearances by Van Patten's? Was Dick's sister Joyce Van Patten ever in an episode?