About John
John Karlen (born John Adam Karlewicz; May 28, 1933 – January 22, 2020) was an American actor. He was best known for his multiple roles on the gothic soap opera Dark Shadows from 1967 to 1971, most notably as Willie Loomis, and as Harvey Lacey on the crime drama television series Cagney & Lacey (1982–88). He won a Primetime Emmy Award in 1986 for the latter role. — Source: Wikipedia