Twilight Sparkle is a lavender unicorn pony with a dark blue with purple and pink mane and tail. Her cutie mark of a 6-pointed pink star with a white one behind it and 5 more smaller ones at each end of the pink star. She is the main protagonist of the series. She is the sister of Shining Armor, and sister-in-law to her former foalsitter, Princess Cadance. She is the protge of Princess Celestia and often writes letters to her. Twilight studies extensively and has magical powers obtained from her horn. She tries her best to impress Celestia but has a tendency to overly analyze and become excessively worried over situations which she assumes will lead her to be seen as having failed.