Guest Stars Howard Saddler as DC Trevor Richard Lou Gish as Linda Harris Sean Murray as DI Monty Fowler Claire Huckle as Paula Mowbray Jane Hazlegrove as Margaret Walkinshaw Simon Bowen as DC Frank Collins William Bateman as DC Phil Leighton Samantha Whittaker as Louisa Paricelli Peter Penry-Jones as Professor Littlejohn Paula Stephens as Gwen Atkins Lionel Guyett as Mr Paricelli Alec Nicholls as Paul Tucker Cate Hamer as Dr. Fleming Tam Hoskyns as Counsellor