Matthew Holness created the character Garth Marenghi and co-wrote Channel 4’s Garth Marenghi’s Darkplace. He has recently written and directed two short films, A Gun For George (Fi...ver maisMatthew Holness created the character Garth Marenghi and co-wrote Channel 4’s Garth Marenghi’s Darkplace. He has recently written and directed two short films, A Gun For George (Film4) and The Snipist (Sky Arts Playhouse).ver menos