Bonanza
1959 · TV Series · Western · Action & Adventure

Acting
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.
1959 · TV Series · Western · Action & Adventure
1957 · TV Series · Mystery · Drama
1964 · TV Series · Sci-Fi & Fantasy · Comedy
1965 · TV Series · Comedy · Sci-Fi & Fantasy
1959 · TV Series · Sci-Fi & Fantasy · Mystery
1957 · TV Series · Western · Action & Adventure
1955 · TV Series · Western · Drama
1961 · TV Series · Drama
1955 · TV Series · Drama · Western
1958 · TV Series · Western · Action & Adventure
1959 · TV Series · Western · Drama
1955 · TV Series · Mystery · Drama
1964 · TV Series · Action & Adventure · Comedy
1965 · TV Series · Western
1960 · TV Series · Western · Drama
1959 · Movie · Comedy · Romance
1941 · Movie · Mystery · Drama
1967 · Movie · Drama · Romance
1962 · Movie · Drama
1957 · Movie · Drama · Mystery
1952 · Movie · Western
1954 · Movie · Comedy · Romance
1940 · Movie · Mystery · Romance
1951 · Movie · Drama · Thriller
1954 · Movie · Thriller · Crime
1956 · Movie · Adventure · Comedy
1950 · Movie · Drama
1960 · Movie · Crime · Comedy
1946 · Movie · Drama · Romance
1953 · Movie · Comedy · Romance
1946 · Movie · Mystery · Crime
1956 · Movie · Drama
1970 · Movie · Drama · Thriller
1955 · Movie · Comedy · Romance
1961 · Movie · Drama · History
1957 · Movie · Drama