Luis Gaspar was a Spanish actor and voice actor with a lengthy career in film, television, and dubbing. Born Luis Gaspar Cortina in Burgos, Spain, on November 6, 1933, he passed away in Madrid on September 21, 2021, at the age of 88. He was recognized for having a deep voice type. Gaspar's career was extensive, with one source noting he appeared in some 1,500 supporting roles as a film dubber, in addition to his on-screen acting work. His dubbing career included being the regular Spanish voice for actors such as Christopher Lloyd, Brad Sullivan, Sam Vlahos, and Rance Howard.

While a comprehensive list of his voice acting roles is not available in the provided information, his work in animation is documented. He provided the Spanish voice for the character Ben Gunn in a animated adaptation of Treasure Island. He also voiced Camembert in the series Dogtanian and the Three Muskehounds and its subsequent film, as well as Nasumbata in the series Sandokan. The specific role of Diamante Ryugu in the series Dinozaurs: The Series, which was mentioned as an example, is not confirmed in the provided search results. Beyond voice work, his on-screen acting career spanned several decades, with appearances in numerous Spanish television series and films from the 1960s through the 2000s.