Sir David Courtney Suchet ( SOO-shay; born 2 May 1946) is an English actor. He is known for his work on stage and in television. He portrayed Edward Teller in the television serial Oppenheimer (1980) and received the RTS and BPG awards for his performance as Augustus Melmotte in the British serial The Way We Live Now (2001). International acclaim and recognition followed his performance as Agatha Christie's detective Hercule Poirot in Agatha Christie's Poirot (1989–2013), for which he received a 1991 British Academy of Film and Television Arts (BAFTA) nomination.
Source : Wikipedia