On "Frasier," although Niles was extremely different from Norm, he too had a wife (Maris) that the audience never once laid eyes on. But if things had shaken out differently, we would have met ...
"Frasier" went in a slightly different direction ... finally cut ties with his wife (oft-mentioned, and never glimpsed) Maris, he utilized the services of Donny, a straight-shooting, tough ...