As an actor, I loved him!
As a human being, he was a real sh1t!
Read his bio:
https://www.imdb.com/name/nm0000974/bio
"Always fiscally and ideologically conservative, he became politically active in later life when he believed that many of the things he held dear were being eroded by the counterculture movement.
He supported George Wallace's presidential campaign in 1968 and in 1972 supported extreme right-wing Republican Rep. John Schmitz (father of Mary Kay Letourneau), as the incumbent President Richard Nixon was viewed as too progressive by many Republicans."
"During the 1960s he was convinced that the anti-Vietnam War and civil rights movements were being run by overseas Communists, and said as much in interviews.
He told reporters that he believed the civil rights movement in particular, and the riots in places like Watts (CA) and Newark (NJ), and demonstrations in Birmingham (AL), were the result of perfectly content "negroes" being stirred up by a handful of troublemakers and Communist agitators with an anti-American agenda."
"Members of the cast and crew on the set of his last series, The Guns of Will Sonnett (1967)--in which he played the surprisingly complex role of an ex-army scout trying to undo the damage caused by his being a mostly absentee father--said that
he cackled with delight and danced a little jig upon learning of Martin Luther King's assassination."
"Had a bunker on his Los Angeles estate fully outfitted with firearms and survival supplies in case there was an invasion by the Soviets."
"In his later years he was known to canvass co-workers about their voting habits."
"Film editor Stanley Frazen, who was on the set of Brennan's TV series The Guns of Will Sonnett (1967) when Brennan celebrated the assassination of Dr. Martin Luther King, said
Brennan later had another jubilant moment when Robert F. Kennedy was murdered in June 1968. Frazen recalled the cast and crew were "incredulous" at the jig danced by the elderly Brennan when he was told of King's death."
"He once said the 1965 Watts (CA) riots could have been stopped "with a machine gun"."