Patrick O'Neal - 1945

Patrick O'Neal was an American actor and restaurateur. In 1972 He played murderous architect Elliot Markham in Blueprint for Murder, the final episode of the first season of Columbo. The episode is notable for having been directed by Lieutenant Columbo himself Peter Falk. Years later, O'Neal made a second guest appearance on the show, playing TV executive Frank Flanagan in Season 7's Make Me a Perfect Murder.