Mr. Night is a sky spirit residing in the Night Land. He was banished from Rainbow City by King Color, and now he wishes to gain his revenge by destroying Rainbow City and robbing the world of all its color, so that he can rule it. He also allied himself with human criminals in order to kidnap Princess Aurora, Spirit of Dawn, and hold her for ransom. Mr. Night flew around on a very fast black craft (faster than Mary Marvel) and could withstand a punch from Mary Marvel. He lived in a big, black castle in Night Land and he may have been the spirit of the color black itself.