Former child actor John Eimen, known for his work on such well-known shows including “Leave It to Beaver,” “Petticoat Junction,” and “The Twilight Zone,” passed away on Friday of prostate cancer while at his home in Mukilteo, Washington.

He had been diagnosed in September, per Deadline .

Born on Oct. 2, 1949, in Chicago, Eimen moved with his family to Los Angeles in the 1950s. As a freckled-face red haired child, he was discovered by an agent who was friends with his first-grade teacher.

He worked with a few of Hollywood’s legendary performers, including Robert Stack, Jackie Coogan, Barbara Billingsley, and a pre-presidential Ronald Reagan. By the time he was 18, Eimen had numberous screen credits.

He’s perhaps most famous for his debut role, where Eimen played a classmate of Theodor

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