The Valley of the Dolls star passed away on Monday (07Sep15) .

Milner started acting as a child and scored his first professional role, aged 15, in Life with Father in 1947.

He went on to star in several TV shows and movies, including Murder, She Wrote, Route 66, The Lone Ranger, Sands of Iwo Jima, Operation Pacific, Too Much, Too Soon, Fantasy Island, and Pillars of the Sky.

Milner also portrayed a jazz guitarist in acclaimed 1957 film Sweet Smell of Success, but he'll best be remembered for his portrayal of Officer Pete Molloy in U.S. TV's Adam-12, which ran from 1968 to 1975.

After retiring from acting, he co-hosted a radio show focused on his love for fishing in Southern California, and he was also a successful avocado farmer.