Guest Stars Frances Churchill as Paramedic Ryan Hurst as Chris Kerry Godliman as WPC Joanna Scanlan as Wendy Prescott Valerie Gogan as Katherine Banks Michael Nardone as Pete Banks Margery Withers as Nell Smith Oliver Hickey as PC Antoinette Alexandrou as Lisa Forester Mark Burford as Russell Tyne Rafaeli as Sally Lennox