Earl Hammond
From Transformers Wiki
Earl Hammond (June 17, 1921 - May 1, 2002) was an American actor. Following a live-action TV career in the 1950s and '60s, Hammond transitioned into voice acting later in his life, and is easily most famous for his role as the villainous Mumm-Ra on ThunderCats. He provided many other voices for ThunderCats as well, along with characters in Silverhawks, The Adventures of the Galaxy Rangers and Star Blazers.
