
Acting
Arthur Wells Gilmore, known as Art Gilmore (March 18, 1912 – September 25, 2010) was an American actor and announcer heard on radio and television programs, children's records, movies, trailers, radio commercials, and documentary films. He also appeared in several television series and a few feature films.
Description above from the Wikipedia article Art Gilmore, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Moonbeams
as Moon

The Amazing Howard Hughes
as Newsreel Announcer
Action on the Beach
as Narrator

The Nutty Professor
as Narrator (voice) (uncredited)

Johnny Cool

The Gallant Hours
as Narration (Japanese scenes)

Who Was That Lady?
as Television Announcer (uncredited)

Squad Car
as Narrator (uncredited)

Suicide Battalion
as Captain Hendry (uncredited)

An Evening with Fred Astaire
as Narrator (voice)

The Amazing Howard Hughes
as Newsreel Announcer · 2 ep.

The Waltons
as Poetry Pantry Announcer (voice) · 1 ep.

Emergency!
as Battalion Chief · 1 ep.

The Mary Tyler Moore Show
as Norman Keller · 1 ep.

Adam-12
as Lt. Moore · 13 ep.

Dragnet
as Capt. Hugh Brown · 1 ep.

Highway Patrol
as Narrator (voice) · 156 ep.

Public Defender
as Frank Leonard · 1 ep.
The Whistler
1 ep.

Dragnet
as Capt. Harry Didion · 4 ep.
Saboteur
1942