Brother of Kevin O'Neal.

He attended and graduated from Munich American High School in Munich, Germany, in 1959. His father was a Hollywood writer who was doing a stint working for the American government radio network "Radio Free Europe", which beamed programing and propaganda into Communist-controlled Eastern Europe.

Son of actress Patricia O'Neal and author/screenwriter Charles O'Neal.

He was a close friend of Lee Majors until a relationship blossomed between he and Majors' wife Farrah Fawcett.

Former brother-in-law of Dey Young.

As a teenager, he was a Golden Gloves boxer who compiled an amateur boxing record of 18-4 with 13 knockouts.

Father of actor Patrick O'Neal from his marriage to Leigh Taylor-Young.

Began his career as a stand-in and stunt man.

Was a Golden Gloves boxer in 1956-1957 with an 18-4 record including 13 knockouts.

5/07: Prosecutors decided not to file charges against him following a brawl with his son and allegations of assault on 2/3/07.

Lived with Farrah Fawcett (1980-1997). They have a son, Redmond O'Neal.

One of his best friends is Charlie Mattera.

Was originally considered for the role of Rocky Balboa in Rocky (1976). However, "Rocky" scriptwriter Sylvester Stallone had sold the film rights on the condition that he got to play the title role, so he and not O'Neal wound up starring in the picture. part.

His first acting job was on the German series "Tales of the Vikings" (1959) in 1959.

Father of Tatum O'Neal and Griffin O'Neal.

His manager is Neil Hassman.

In remission in his battle with leukemia.

Was once romantically linked to Ursula Andress.

Former father-in-law of John McEnroe and Rebecca De Mornay.

He was considered for the role of Michael Corleone in The Godfather (1972)