Actor
Clete Roberts
Born 1912 · Portland, Oregon U.S.
Clete Roberts (February 1, 1912 – September 30, 1984) was an American broadcast journalist. He began his career in radio news, then transitioned to television, working for stations in California. In later years, he portrayed himself and fictional broadcast journalists in entertainment media, such as in 1970s episodes of the TV series M*A*S*H. From Wikipedia.
Acting

Columbo
TV Newsman · 1971

M*A*S*H
Interviewer · 1972

The Jerk
Announcer · 1979

Mission: Impossible
Announcer · 1966

Testament
Newscaster · 1983

The Last Hurrah
Reporter (uncredited) · 1958

The Phenix City Story
Self, The Interviewer · 1955

Meteor
Network Newscaster · 1979

Countdown
Announcer (uncredited) · 1967

Goliath Awaits
Newscaster (uncredited) · 1981

Memories of M*A*S*H
Self · 1991

Man on a String
Narrator (voice) · 1960

Heatwave!
Newscaster · 1974

The Swinger
Clete Roberts · 1966

San Francisco International Airport
Announcer · 1970

The Todd Killings
Reporter in Courthouse · 1971

Portrait: A Man Whose Name Was John
Clete Roberts · 1973