Guest Stars Alex Avery as Carl Joanne Howarth as Paramedic John Kirk as Barry Annette Badland as Eleri Nikki Amuka-Bird as Tracy Paul Copley as Jeff Jones Corrinne Wicks as Naomi Julie Legrand as Hazel Tom Beard as Captain Rogers 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