In the original game of Clue, Mr. Green was actually called Reverend Green!

The board game Clue (or Cluedo as it's known in Europe) features six fictional murder suspects and challenges it's players to figure out who did it. The suspects are Miss Scarlett, Colonel Mustard, Mrs. White, Reverend Green, Mrs. Peacock and Professor Plum.

Reverend Green is only known as a reverend in Great Britain. There, he is a hypocritical man of the cloth who is suspected of homicide. In the American game, he is Mr. Green and inhabits many roles from mobster to businessman.

Parker Brothers, the owners of the American game, refused to call him Reverend Green because they thought the American public would object to a member of the clergy being suspected of murder.

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