David Buck (17 October 1936 – 27 January 1989) was an English actor.
He starred in many television productions from 1959 until 1989. One of his earlier roles was that of Horatio Hornblower in an episode entitled "Hornblower" (1963), in the Alcoa Premiere TV series. He played Winston Smith in Theatre 625: The World of George Orwell: 1984 (1965), a remake of Nigel Kneale's adaptation of the novel. In the first two series of the ITV horror and supernatural anthology series Mystery and Imagination (1966–68) he played the series narrator Richard Beckett (from Sheridan Le Fanu's story "The Flying Dragon") whose character also became involved in some of the other stories adapted. His film career included roles in Dr. Syn, Alias the Scarecrow (1963), The Sandwich Man (1966), the Hammer film The Mummy's Shroud (1967), Deadfall (1968) and Taste of Excitement (1970). He also had a role as Royal Air Force Squadron Leader David "Scotty" Scott in the film Mosquito Squadron (1969), with David McCallum, in which his character is shot down during a low-level bombing raid over Northern France in 1944 and assumed killed.
Later, he was a voice actor for the films The Lord of the Rings (1978), for which he provided the voice of Gimli, and The Dark Crystal (1982), where he voiced SkekNa the Slave Master.
Buck died of cancer in 1989. At the time of his death, he was married to the actress Madeline Smith, who featured in the film version of Up Pompeii (1971) and numerous comedy programmes in the 1970s.