Don LaFontaine, American voice actor, producer, and screenwriter (d. 2008)
Donald Leroy LaFontaine (August 26, 1940 – September 1, 2008) was an American voice actor who recorded more than 5,000 film trailers and hundreds of thousands of television advertisements, network promotions, and video game trailers.

He became identified with the phrase "In a world...", used in so many movie trailers that it became a cliché. Widely known in the film industry, the man whose nicknames included "Thunder Throat", "The Voice of God" and "The King of Movie Trailers", became known to a wider audience through commercials for GEICO insurance and the Mega Millions lottery game.