"Little Grey Cells"
Hercule Poirot is Agatha Christie's Belgian Private Detective.
He has appeared in 33 novels; over 50 short stories and one play, Black Coffee. These were published between 1920 and 1975.
He has been portrayed on TV, Film and Radio by actors including: Austin Trevor, Tony Randall, ALbert Finney, Peter Ustinov, Ian Holm, John Moffatt, Alfred Molina, David Suchet, Kenneth Branagh and John Malkovich.
David Suchet played the Belgian Detective for 25 years and is the only actor to have filmed all Hercule Poirot stories between 1989 and 2013. The only Hercule Poirot adaptation that he hasn't yet filmed is the Play, Black Coffee. However, the star of the BBC Radio 4's Dramatisations of Poirot, John Moffatt, narrated Black Coffee on audiobook for Harper Collins.