Norman Eugene "Clint" Walker was born in Hartford, Illinois, to Gladys Huldah, a Czech immigrant, and Paul Arnold Walker, who was from Arkansas. Walker had a twin sister, Neoma Lucille "Lucy" Westrbook. The siblings were born in May of 1927. Lucille died in Hartford in 2000 at the age of 73.
Walker has been married three times. He was first married to Verna Garver in 1948. They had one daughter together, Valerie, who was born in 1950. Clint and Verna divorced in 1968.
Walker remarried in 1974 to Giselle Hennesy. The two were together until Giselle's death in 1994. Walker remarried once more to Susan Cavallari in 1997. As of 2015, the couple is still together. They live in Grass Valley in Nevada County in Eastern California.
Prior to becoming a film star, Walker worked at a factory and on a river boat, then joined the Merchant Marines. Later on, he labored at odd jobs in Texas, California and Nevada before finally catching his break when he was discovered by Henry Willson. Walker made his debut in a Bowery Boys film called "Jungle Gents."
Walker secured the leading role in the television series called "Cheyenne." The show made him famous and launched him into the film industry.