Lord Tirek is a character in My Little Pony: Friendship is Magic who appeared as the main antagonist of the season 4 finale "Twilight's Kingdom." He is a powerful centaur with the ability to drain ponies' magic. Lord Tirek is a revamped version of the very first antagonist from the original My Little Pony cartoons. He is the son of King Vorak and Queen Haydon and the elder brother of Scorpan. Tirek is voiced by Mark Acheson.