English actor, writer, and dramatist who played Inspector Poirot in Agatha Christie mysteries. He won Academy Awards for Best Supporting Actor for his roles in the films Topkapi and Spartacus.
He made his stage debut in 1938 at the prestigious Players' Theater before serving in the British Army.
He played Nero in Quo Vadis and in The Sundowners.
His mother was a painter and ballet designer Nadezhda Benois.
In 1960, he won a Grammy Award for Best Recording for Children for his song "Prokofiev: Peter and the Wolf" with Austrian conductor Herbert von Karajan and the Philharmonia Orchestra.