He started his acting career in the late ’60s and early ’70s. Selleck is a man who always stands out for his elegance — and his classic mustache, of course. His most popular role was the private investigator protagonist of the ’80s series, Magnum, P.I., as well as his character in Three Men and a Baby. He’s still active today, and you can see him in the TV series, Blue Bloods.