Dustin Hoffman character Wally Stanton
Vanessa Redgrave character Agatha Christie
Timothy Dalton character Archie Christie
Helen Morse character Evelyn
Celia Gregory character Nancy Neele
Paul Brooke character John Foster
Carolyn Pickles character Charlotte Fisher
Timothy West character Kenward
Tony Britton character William Collins
Alan Badel character Lord Brackenbury
Robert Longden character Pettelson
Yvonne Gilan character Mrs. Braithwaite
Sandra Voe character Therapist
Barry Hart character Supt. MacDonald
David Hargreaves character Sgt. Jarvis
Tim Seely character Capt. Rankin
Christopher Fairbank character Luland
Liz Smith character Flora
Peter Arne character Hotel Manager
Hubert Rees character Official at Literary Luncheon
Stan Richards character Hotel Porter (uncredited)
