Anthony Ernest Pratt (10 August 1903 – 9 April 1994) was the inventor of the English detective-themed board game Cluedo, currently owned and marketed by American entertainment company Hasbro. In the lead-up to the 150 millionth sale of Cluedo, Waddingtons began a hunt to find out about the elusive creator of the board game. It was eventually revealed Pratt had passed two years earlier of natural causes, and that he did not make a substantial amount of money from the game unlike Monopoly's creator.