Recurring Guest Characters John Penrose 1 guest appearances Chris Curtis 1 guest appearances Therese Coffey 1 guest appearances Darren McCaffrey 1 guest appearances Christine Jardine 1 guest appearances Mark Littlewood 1 guest appearances Liam Fox 1 guest appearances Tim Davie 1 guest appearances Paul Staines 1 guest appearances Dan Hodges 1 guest appearances Julian Jessop 1 guest appearances Tom Bewick 1 guest appearances Scarlett McGwire 1 guest appearances