First broadcast 5th January 1992.<br /><br />Poirot starts receiving mocking letters with allusions to crimes-to-be, signed "ABC". <br /><br />David Suchet as Hercule Poirot<br />Hugh Fraser as Captain Hastings<br />Philip Jackson as Chief Inspector Japp<br />Donald Sumpter as Cust<br />Donald Douglas as Franklin Clarke<br />Nicholas Farrell as Donald Fraser<br />Pippa Guard as Megan Barnard<br />Cathryn Bradshaw as Mary Drower<br />Nina Marc as Thora Grey<br />David McAlister as Inspector Glen<br />Vivienne Burgess as Lady Clarke<br />Ann Windsor as Miss Merrion<br />Michael Mellinger as Franz Ascher<br />Miranda Forbes as Mrs Turton<br />Peter Penry-Jones as Superintendent Carter<br />Lucinda Curtis as Mrs Marbury<br />Jeremy Hawk as Deveril<br />Allan Mitchell as Dr Kerr<br />Philip Anthony as Doctor<br />Andrew Williamson as Man in Library<br />John Breslin as Mr Barnard<br />Clifford Milner as Constable<br />Claude Close as Doncaster Sergeant<br />Alex Knight as Andover Sergeant<br />David Fox as Scotland Yard Sergeant (as David Richard-Fox)<br />Campbell Graham as Mr. Downes<br />Gordon Salkilld as Commissionaire<br />Norman McDonald as Mr Strange<br />Jane Birdsall as Nurse<br />Pat Gorman as Desk Sergeant <br />Tony Red Richards as Librarian
