Scriptwriter for the Big Finish 2000AD audio dramas Judge Dredd: Dreddline, Judge Dredd: Jihad and Judge Dredd: Grud is Dead; author of the novels Judge Dredd: Eclipse, Rogue Trooper: Blood Relative and Judge Dredd: Whiteout, and short fiction in the Judge Dredd Megazine Swallow's other credits include original stories for the Star Trek: Voyager television series, the Sundowners 'steampunk' novels, Warhammer 40,000 fiction and scripts for videogames.