Guest Stars Jack Deam as DC Ken Blackstone Lorraine Burroughs as DS Winsome Jackman Nicholas Sidi as CS Ron McLaughlin Rosie Day as Hannah Rothwell Francis Magee as Arthur Jameson Richard Dillane as DCI Stuart Burgess Patricia Potter as Pamela Jefferies Dominic Mafham as Keith Rothwell Patrick Baladi as Martin Fleming Lewis Rainer as Tom Rothwell Maxine Finch as Headmistress