PRINCESS LUNA

Princess Luna is Celestia's little sister. She controls night. Her cutie mark is the moon. She felt very angry towards all ponies because they used to frolic and play all day long, but at night they would all curl up and sleep. So she became evil and also became known as 'Nightmare Moon'. But Celestia used the elements of harmony to imprison Luna in the moon. She also became known as the 'Mare in the Moon'. But then a prophecy was made that on a specific day she would be released from the moon. Twilight Sparkle and five of her friends helped Luna turn good. She is still very remorseful.