Garth Marenghi is a spoof pulp horror author created by English comedians Matthew Holness and Richard Ayoade, and portrayed by Holness.

"Garth Marenghi's Terrortome" is a book published in 2022 and described:

When horror writer Nick Steen gets sucked into a cursed typewriter by the terrifying Type-Face, Dark Lord of the Prolix, the hellish visions inside his head are unleashed for real. Forced to fight his escaping imagination - now leaking out of his own brain - Nick must defend the town of Stalkford from his own fictional horrors, including avascular-necrosis-obsessed serial killer Nelson Strain and Nick's dreaded throppleganger, the Dark Third.