Charles EP Murphy

 wrote the The Brigadier Adventures audio story The Fall of Shield Sentai. Murphy also penned The Airzone Solution for the Novelisations in Time & Space range, adapted from Nicholas Briggs' script for the original drama, and the Obverse Books Faction Paradox short story The Crikeytown Cancellations, published in The Boulevard: Volume One.

Charles also wrote The Paimon Affair for BBV Productions, but withdrew the story over the October 2021 scandal.