Robert Llewellyn is the only cast member of the original British series to appear in the American version.
Originally the pilot was written by someone else, but when Rob Grant and Doug Naylor came in, they did not like the script, so wrote a new one. A poll was then taken with the cast (the names had been removed from the script, so prejudice would not be an issue) to see which was better. Grant and Naylor's script won.
Chris Barrie was also offered the chance to reprise his role as Rimmer, but turned it down to avoid being tied to the show.
The pilot was briefly featured on The Best TV Shows That Never Were (2004) (TV) - this was the first time that any portion of the pilot was broadcast on public television.
This US version of "Red Dwarf" (1988) failed to get past pilot stage, and has never been screened anywhere. It was essentially a remake of the first UK episode, "The End", with bits from other stories added in as well.
Two versions of this pilot film were produced. The second version cast Terry Farrell as the Cat. The show's failure to become a series freed her to join the cast of "Star Trek: Deep Space Nine" (1993) later that year, as well as allowing Jane Leeves to become part of the cast of "Frasier" (1993).