Early life

Walker was born in Queens, New York and is the elder son of actors Robert Walker and Jennifer Jones. He attended The Lawrenceville School near Princeton before beginning his acting career.

Career

Walker appeared in a 1962 episode of the classic television series Route 66. He has appeared in films and television since the early 1960s. His movies include the title role in Ensign Pulver (1964) with Burl Ives and Walter Matthau, The War Wagon (1967) with John Wayne and Kirk Douglas, the title role in Young Billy Young alongside Robert Mitchum in 1969, Easy Rider, also in 1969, and Beware! The Blob, or--Son Of Blob in 1972. In 1982 he starred in Angkor: Cambodia Express with Nancy Kwan, Christopher George, Woody Strode, and Sorapong Chatree.

In The Big Valley episode, "My Son, My Son", aired on November 3, 1965, Walker portrayed Evan Miles, an emotionally disturbed college dropout who becomes obsessed with childhood friend Audra Barkley. He played the title role and another emotionally disturbed character who was a troubled actor who lived and performed on the streets and in circuses, in Naked City (TV series) episode "Dust Devil on a Quiet Street" from Nov. 28, 1962. He had a memorable role in Star Trek as Charles 'Charlie' Evans in the episode "Charlie X", which aired September 15, 1966. In addition, he played Billy the Kid in episode 22 of The Time Tunnel, which originally aired on February 10, 1967, and also portrayed Nick Baxter, an ill alien who caused the deaths of humans by touch, in the episode "Panic" in the television series The Invaders, which aired on April 11, 1967. He played Mark Cole in the October 29, 1967 episode of Bonanza titled "The Gentle Ones". He also had a role in an episode of Columbo, "Mind Over Mayhem" (1974), in the fifth season of the series Combat! in the episode "Ollie Joe", and in the 1978 pilot episode of The Eddie Capra Mysteries.

In later years, Walker maintained an episodic presence on TV, he guested in two episodes of Murder, She Wrote with Angela Lansbury broadcast in 1987 and 1990. His last screen performances were on the TV series L.A. Law and In the Heat of the Night, both in 1991, a TV series appearance in 1993, and a final film appearance in a small role in the 2012 film Beyond the Darkness.

Partial filmography

• The Hook (1963)
• The Ceremony (1963)
• Ensign Pulver (1964)
• The Happening (1967)
• The War Wagon (1967)
• The Savage Seven (1968)
• Eve (1968)
• Killers Three (1968)
• Easy Rider (1969)
• Young Billy Young (1969)
• The Man from O.R.G.Y. (1970)
• Road to Salina (1970)
• Beware! The Blob (1972)
• Don Juan, or If Don Juan Were a Woman (1973)
• Hex (1973)
• The Spectre of Edgar Allan Poe (1974)
• Gone with the West (1975)
• The Passover Plot (1976)
• Angkor: Cambodia Express (1982)
• Hambone and Hillie (1983)
• Double Jeopardy (1983)
• The Devonsville Terror (1983)
• Evil Town (1987)

[ Source: Wikipedia ]