
Australian born William H. O'Brien began his screen acting career in Australia in 1918, then resumed in Hollywood in 1921. He continued acting in films and television series to 1971.

Perry Mason
TV • 1957

Bonanza
TV • 1959

Bewitched
TV • 1964

The Twilight Zone
TV • 1959

Have Gun, Will Travel
TV • 1957

Have Gun, Will Travel
TV • 1957

Get Smart
TV • 1965

Dr. Kildare
TV • 1961

Cheyenne
TV • 1955

Rawhide
TV • 1959

Rawhide
TV • 1959

The Life and Legend of Wyatt Earp
TV • 1955

Wanted: Dead or Alive
TV • 1958

Alfred Hitchcock Presents
TV • 1955

Alfred Hitchcock Presents
TV • 1955

The Man from U.N.C.L.E.
TV • 1964

The Man from U.N.C.L.E.
TV • 1964

Outlaws
TV • 1960