Guest Stars James McKenna as Sgt. Don Brady David McKail as Dr. Mackenzie Barry Jackson as Walter Peters Michelle Joseph as WPC Ronnie Lonnegan Kate Maberly as Melanie Monkton Jason Merrells as Mike Patterson Jonjo O'Neill as Jeffrey Meadows Susan Penhaligon as Pam Hartley Julian Wadham as Harry Monkton Barrie Ingham as Arnold Harris Annette Ekblom as Fiona Monkton Michael Cochrane as Babcock, HMI Ben McCosker as Steve Nesbit James Flynn as Paul Mathews Joanna Bacon as Tessa Meadows Michael Bertenshaw as Tony Chalmers Muriel Barker as Evelyn Post Joanne Allen as Susan Talbot Liam Noble as Lionel Grange Elliot Young as Billy Simpson
