Oliver McGowan was an American actor.
Mean Justice 1971
as Harvey Walk
Banning 1967
as Senator Brady
Stagecoach 1966
as Mr. Haines
Palm Springs Weekend 1963
as Henry Blanchard (uncredited)
The Great Impostor 1960
as RCN Commander (uncredited)
Judgment at Nuremberg 1959
as Senator
The Joker is Wild 1957
as Judge (uncredited)
Credits from TMDB.