As I mentioned once before, I'm curious about how many COLUMBO actors had spouses who also appeared on the show (including former spouses and future ones). The obvious ones are Peter Falk himself and Shera Danese, John Cassavetes and Gena Rowlands.
Two other pairs I can name are Robert Culp and France Nuyen, and Don Gordon and Arlene Martel (I had to be told that they were married by someone here).
Are there any others?

Very impressive, Grant! I didn't know some of those, and doubt I can come up with more, but maybe someone else can. Thanks for posting.

I believe Gordon's former spouse was Nita Talbot, not Arlene Martel.

His obituary didn't mention it though, and some online sources omit her name as well. I think IMBD still lists her, and her wiki page mentions it, but not his.

Yes, I managed to get those confused.

A shame they never got around to casting Shirley Jones!

That's what I keep thinking.
What I mean is, I'm always making little trivia lists, and that includes lists of these COLUMBO actor spouses.
Another one would be Barbara Bain (Martin Landau).
And another would be Howard Duff (Ida Lupino).

Ted, That would be good. I could just see S. Jones murdering someone by running them down with the Partridge Family Bus (Yes, it's late and I'm punchy)

But come to think of it now, there was nobody run down by a vehicle in the series if I remember correctly.

Mind over Mayhem had a murder by car.

It would've been nice to see John McIntyre in an episode, especially one of the Jeanette Nolan ones. He might've been good as one of Columbo's superiors.
Or June Carter Cash somewhere in SWAN SONG.

Bird in Hand had a murder by vehicle also (truck I think).

Tyne Daly could sure play a sexy full figured gal.