Kenneth Patrick Weatherwax (September 29, 1955 – December 7, 2014) was an American child actor best known for having played Pugsley Addams on The Addams Family.

Weatherwax was born in Los Angeles into a show-business family. His aunt was actress and dancer Ruby Keeler. Beginning in 1954, his half-brother, Joey D. Vieira, played Porky on the first three seasons of Lassie under the stage name of Donald Keeler. Ken Weatherwax's uncles were Frank and Rudd Weatherwax, Lassie's trainers and owners of the first dog to play the role.^[1]

Weatherwax made his acting debut in the early 1960s when he was age 9, playing a boy named Chester in a commercial for Gleem toothpaste.^[2] He was cast as Pugsley Addams on The Addams Family. The program ran for two seasons from 1964 to 1966. After its cancellation, Weatherwax found he was typecast as Pugsley and lost interest in acting. He entered the U.S. Army at age 17^[3] and, at age 21, he reprised the role of Pugsley in the 1977 reunion film Halloween with the New Addams Family. He established a career behind the camera as a movie studio grip and set builder, and made occasional appearances at Addams Family-related events with former costar Lisa Loring, who had played Pugsley's younger sister Wednesday Addams on the show. The two remained lifelong friends.^[4]

Weatherwax died on December 7, 2014, of a heart attack at his home in West Hills, California, at the age of 59.^[5] Via a crowdfunding campaign, the owner of Dearly Departed Tours & Artifact Museum raised the funds to have Weatherwax interred in Valhalla Memorial Park Cemetery in North Hollywood in 2017.^[6] A portion of his cremated remains is located at Dearly Departed Tours & Artifact Museum.^{[citation needed]}