Bob Peck
(Detective Sergeant Cooper)
Miranda Richardson
(Dr. Sarah Blakeney)
Douglas Hodge
(Jack Blakeney)
Trudie Styler
(Joanna Lascelles)
Beth Winslet
(Ruth Lascelles)
Siân Phillips
(Mathilda Gillespie)
Virginia McKenna
(Violet Orloff)
Paul Brooke
(Duncan Orloff)
Miles Anderson
(Detective Inspector Harmer)
Hugh Bonneville
(Tim Duggan)
Finbar Lynch
(Dave Hughes)
Alan MacNaughtan
(James Gillespie)
John Duval
(Sir William Cavendish)
Alan Williams
(Bob Spede)
Christine Moore
(Jenny Spede)
Clare Clifford
(Headmistress)