Joan Hickson as Miss Jane Marple

Jill Meager as Lucy Eyelesbarrow

David Horovitch as Detective Inspector Slack

Ian Brimble as Detective Sergeant Lake

Maurice Denham as Luther Crackenthorpe

Joanna David as Emma Crackenthorpe

Bernard Brown as Harold Crackenthorpe

Robert East as Alfred Crackenthorpe

John Hallam as Cedric Crackenthorpe

Andrew Burt as Dr. John Quimper

David Waller as Chief Inspector Duckham

Mona Bruce as Mrs. McGillicuddy

Nicholas Blane as Paddington Porter

Juliette Mole as Anna Stravinska

David Beames as Bryan Eastley

Katy Jarrett as Mary

Rhoda Lewis as Mrs. Brogan

Todd Boyce as Walter Hudd

Robert Reynolds as Ladislaus Malinowski

Oscar Pearce as Philip Oxley

Leslie Adams as Desk Sergeant

Pamela Pitchford as Mrs. Kidder

Christopher Haley as Alexander Eastley

Alan Penn as Patmore

Will Tacey as Arthur Wimborne

Jean Boht as Madame Joliet