Alan Hewitt (1915–1986) was an American film, television and stage actor.
He never became a major star, but he did have a lengthy career which included smaller parts in several well-known programs, including Daktari, I Dream Of Jeannie, Dr. Kildare and The Phil Silvers Show. He made four guest appearances on Perry Mason, two of which he portrayed the murderer: in 1961 he played Dr. Marcus Tate in "The Case of the Brazen Bequest," and in 1965 he played the role of Curt Ordway in "The Case of the Fatal Fetish."
Possibly his most prominent roles were Detective Brennan in My Favorite Martian and the district attorney in How to Murder Your Wife.
Source: Wikipedia