Dustin Hoffman
Wally Stanton
Vanessa Redgrave
Agatha Christie
Timothy Dalton
Archie Christie
Helen Morse
Evelyn
Celia Gregory
Nancy Neele
Paul Brooke
John Foster
Carolyn Pickles
Charlotte Fisher
Timothy West
Kenward
Tony Britton
William Collins
Alan Badel
Lord Brackenbury
Robert Longden
Pettelson
Yvonne Gilan
Mrs. Braithwaite
Sandra Voe
Therapist
Barry Hart
Supt. MacDonald
David Hargreaves
Sgt. Jarvis
Tim Seely
Capt. Rankin
Christopher Fairbank
Luland
Liz Smith
Flora
Peter Arne
Hotel Manager
Hubert Rees
Official at Literary Luncheon
Pamela Austin
Pierrot
Donald Nithsdale
Uncle Jones
Jill Summers
Nancy's Aunt
Geoff Tomlinson
Hotel Receptionist
John Joyce
Hotel Waiter
Irene Sutcliffe
Dress Shop Manageress
Ann Francis
Jane
Hope Johnstone
Royal Baths Clerk
John Ludlow
Royal Baths Clerk
Ray Gatenby
Official at Literary Luncheon
Tommy Hunter
Pierrot
Bert Ward
Pierrot
Harry Segal
Pierrot
Harry Segall
Hotel Trio
Jim Archer
Hotel Trio
Reginald Kilbey
Hotel Trio
Jonathan Benson
Head Waiter (uncredited)
Maxwell Craig
Policeman (uncredited)
Harry Fielder
Policeman (uncredited)
Tony Haygarth
Man Drinking Tea (uncredited)
Juba Kennerley
Gent Watching Billiards (uncredited)
Breandán O'Connor
Bellboy (uncredited)
Stan Richards
Hotel Porter (uncredited)