Detective Sergeant Cooper
Dr. Sarah Blakeney
Jack Blakeney
Joanna Lascelles
Ruth Lascelles
Mathilda Gillespie
Violet Orloff
Duncan Orloff
Detective Inspector Harmer
Tim Duggan
Dave Hughes
James Gillespie
Bob Spede
Jenny Spede
Headmistress
Sir William Cavendish (as John Duval)
