Mills Watson (Oakland, California, US, 10 July 1940) is an American actor. Watson is possibly best known for his role as Deputy Perkins, first on B.J. and the Bear and later on The Misadventures of Sheriff Lobo. He also played Uncle Buster in the serial Harper Valley P.T.A.

Watson played twice the stupid sidekick of a sheriff. He played beside Claude Akins in The Misadventures of Sheriff Lobo. In Up in Smoke he played the assistant of Stacy Keach. Watson played guest roles in serials as The A-Team, Airwolf, The Rockford Files, Murder She Wrote and M*A*S*H as well as movies such as Papillon. Watson made his debut in 1968, in an episode of Gunsmoke. The last role he played was in 1992, in the television film Intruders.

Best known for his role of "Uncle Buster" in the TV series "Harper Valley P.T.A." (1981).

Best known for his role as Deputy Perkins (no first name for him was ever given) in the TV series "B.J. and the Bear" (1979).

Two of his best known roles were stupid sidekicks (right hand man) of crooked sheriffs: "Misadventures of Sheriff Lobo, The" (1979) playing Deputy Perkins opposite Claude Akins and Up in Smoke (1978) playing Harry opposite Stacy Keach.