Michael Constantine, noted actor.
He gets a lot of press for “My Big Fat Greek Wedding” but he did a lot of other work before (and after) that. No “Mannix”, but “Kojack”, “Homicide: Life on the Street”, “Law and Order: Original Recipe”, “Hunter”, multiple appearances on “Quincy, M.E.”, “Electra Woman and Dyna Girl”, late period “Perry Mason”, and the list goes on. He was even in “The Hustler”, which we watched just a few weeks ago.
I think he was also in the Karen Valentine featured show, Room 222.