Guest Stars Alex Avery as Carl Joanne Howarth as Paramedic John Kirk as Barry Annette Badland as Eleri Nikki Amuka-Bird as Tracy Tom Beard as Captain Rogers Corrinne Wicks as Naomi Julie Legrand as Hazel Paul Copley as Jeff Jones Andrew Dunn as Owen Joe Caffrey as Les Jenny McCracken as Sister Elizabeth Julia Marsen as Sister Agnes Buffy Davis as Tamsin Kier Simon Cox as Kelvin Mathilda O'Neill as Brownie