Twilight Sparkle as Lord Tirek My Little Pony

Twilight Sparkle is the central main character of My Little Pony Friendship is Magic. She is a female unicorn pony who transforms into an Alicorn and becomes a princess in Magical Mystery Cure. She is also the daughter of Twilight Velvet and Night Light, the younger sister of Shining Armor, sister-in-law to Princess Cadance, and paternal aunt to Flurry Heart. Lord Tirek is a male centaur, the older brother of Scorpan, the main antagonist of the season four finale, and one of the main antagonists of the season nine finale. He is a villain who escapes from Tartarus, steals magic, and seeks to rule over Equestria.