The bassist and drummer in Lister's band "Smeg and the Heads" are played respectively by Jeff Walker and Bill Steer, members of Liverpool grind-core band Carcass. The Young Lister is played by Craig Charles' brother, Emile Charles.
Monty Python star Graham Chapman was cast as a TV presenter but died shortly before recording. Director Ed Bye cast his own wife, Ruby Wax, instead.
The Cat appears to have learned a lot about playing golf since his club-throwing attempt at the sport in Better Than Life (1988).
Ironically, if Rimmer was successful in changing his timeline as he had intended, the Cadmium 2 radiation leak would never had happened as the drive plate would've been fitted properly, the Cat race would never have existed and Kryten would still be trapped on the Nova 5 and Lister would've lived a relatively normal life regardless of what happened. Also the timeslides would never have existed, which meant that they couldn't go back in time to alter history in the first place, creating a paradox similar to that in Out of Time (1993).