The 'Grant Naylor' collaboration, as it had become known, created the cult science-fiction comedy series, Red Dwarf, which evolved from Dave Hollins: Space Cadet, a recurring sketch within Son Of Cliché. Grant was briefly seen (uncredited) in an episode of Red Dwarf entitled "Backwards" (1989), as a man who 'un-smoked' a cigarette.
In the mid-1990s, the 'Grant Naylor' collaboration was ended when Grant left Red Dwarf after the sixth series, citing creative differences ("... it was basically 'musical differences' ...") with Doug Naylor. His main reason however, he said, was that he 'wished to have more on his 'tombstone' than Red Dwarf on its own'.
Since Red Dwarf, Grant has written two television series, The Strangerers and Dark Ages, and four solo novels, his most recent being Fat, a satirical look at how obesity is looked upon by society and the media.
Aside from his written works, Grant has recently taken up the mic on the stand-up comedy circuit with his wryly observed take on life.