Ronald Ray Cobb was an American–Australian artist. In addition to his work as an editorial cartoonist, he contributed concept art to major films including Dark Star (1974), Star Wars (1977), Alien (1979), Raiders of the Lost Ark (1981), Conan the Barbarian (1982), Back to the Future (1985), The Abyss (1989), Total Recall (1990), and Southland Tales (2006). He had one credit as director, for the 1992 film Garbo.

Dark Star is a 1974 American science fiction comedy film produced, scored and directed by John Carpenter and co-written with Dan O'Bannon. It follows the crew of the deteriorating starship Dark Star, twenty years into their mission to destroy unstable planets that might threaten future colonization of other planets.