Arnold Judas Rimmer is a fictional character in the science fiction sitcom Red Dwarf, played by Chris Barrie. Portrayed as a snobbish and self-centered character, Rimmer is unpopular with his crewmates and is often the target of insults and general ridicule.
After he is killed by a radiation leak during an ellipsis in the series' first episode "The End" (1988) Rimmer is present for most of the series as a computer-generated hologram, indicated by the 'H' symbol on his forehead. From series I-V, Rimmer is intangible as a hologram and unable to interact with his environment, referred to in-universe as 'soft-light'; come the series VI episode "Legion" (1993), Rimmer's LightBee is upgraded as a 'hard-light' hologram where he is now able to interact with his surroundings as well as being essentially indestructible, yet still able to feel pain. Following the character's departure in the series VII episode "Stoke Me a Clipper" (1997), Rimmer is absent from the show until series VIII, where a flesh and blood version of Rimmer is shown having been resurrected by nanobots with no memory of the hologrammatic Rimmer's experiences and only those of Rimmer prior to the radiation leak in the first episode. However, following a ten-year hiatus after series VIII, the character reappeared as the original hologram Rimmer in the miniseries Back to Earth (2009) onward. Doug Naylor confirmed in 2020 that the Rimmer from Back To Earth onwards is the original Rimmer having returned from his time being Ace Rimmer. Why he returned or what happened to the Nano version of Rimmer from series eight has not been revealed yet.
The creators of the series acknowledge that Rimmer's surname comes from a snobby prefect with whom they attended school. They joke that only the boy's name was used, and not his personality because that would imply he had one