Bobby Buntrock was born in Denver, Colorado, to Robert and Maxine Buntrock. He had a younger sister, Stella. When he was three, the family moved to Whittier, California, where neighbors urged Buntrock’s parents to get their son into acting. After submitting Buntrock’s picture to various agents, he was signed by Marcella Bell. Shortly after signing with Bell, Bobby Buntrock landed his first role on an episode of Wagon Train at the age of four. He also appeared in guest spots on Westinghouse Desilu Playhouse, Mister Ed, and The Donna Reed Show. In 1961, Buntrock won the role of the Harold “Sport” Baxter on the sitcom Hazel, starring Shirley Booth. The series aired for five seasons, first on NBC with Don DeFore and Whitney Blake in the role of Harold’s parents, George and Dorothy Baxter. In the fifth and final season (1965-1966) shown on CBS, the series was retooled after DeFore and Blake were dismissed and Harold lived with his Uncle Steve Baxter (Ray Fulmer), Aunt Barbara (Lynn Borden), and cousin Susie (Julia Benjamin). During the run of Hazel, Buntrock was tutored on the set and attended Lake Marie Public School in Whittier when the show was on hiatus. After Hazel ended its run in 1966, Buntrock appeared in two guest spots on The Virginian in 1967 after which he retired from acting. On April 7, 1974, Buntrock died in an automobile accident in Keystone, South Dakota, at the age of 21. He is buried in Keystone Cemetery in Keystone, South Dakota.