I thought Martin and Bernadette Peters were a couple at one time. He was previously married to British actress Victoria Tennant. He's been married to former The New Yorker writer Anne Stringfield since 2007. They have one daughter. His wife had a bit part in two episodes of the first season of "Only Murders in the Building" on Hulu. She's shown as a cast member with photo, for the show's IMDb cast and crew section.
I had the hots for her when she was in "The Winds of War".