From Wikipedia, the free encyclopedia. David Buck (October 17, 1936—January 27, 1989) was an English actor. His most famous role was in the 1978 animated The Lord of the Rings movie, for which he provided the voice of Gimli. However, he had a memorable role as Royal Air Force Squadron Leader David "Scotty" Scott in the 1969 film Mosquito Squadron opposite David McCallum when his character was shot down during a low-level bombing raid over northern France in 1944 and assumed killed.