Describe the Belgian stranger.

The Belgian, Hercule Poirot, is an older man who is relatively small in size but with a huge mustache. He is a uniquely perceptive man with an egg shaped head, whose "little grey cells" always leads him to uncover the culprit of a mystery. Poirot enjoys fine living and pays extreme attention to his dress and grooming. He enjoys good food and drink and always displays perfect manners. He is pleasant and kindly but not exactly modest. Poirot believes (and justly so) that he is the greatest detective on Earth, a reputation he has managed to live up to. Genius may be the best word to describe his amazing powers of deduction.
In the numerous Agatha Christie novels in which he appears, Mr. Poirot makes no reference to family. Obviously, he is a confirmed bachelor who finds enough fulfillment in mixing with the rich and famous and catching murderers and criminals.