Smart Cookie

Smart Cookie is an Equestrian Earth Pony and one of the many founders of Equestria long ago. She was Chancellor Puddinghead's secretary. She is portrayed as rational and straight-thinking as a counterbalance to Puddinghead's eccentricities. Applejack plays her in the Hearth's Warming Eve pageant.

Role in the series
Smart Cookie, upon saving the three pony tribes from the Windigos' reign, referred to as the Windigo Ice Age, had become a famous cook and pastry maker with Puddinghead helping her and having banquets to celebrate her as a good baker like her. She also wielded one of the Elements of Harmony alongside Puddinghead, Clover the Clever and her other friends long before the birth of Princess Celestia and Luna. But though they were specified dead, the group was actually imprisoned in a village nearby the hometown of Stygian thanks to the fearmongering ancestors of Bishop Dipper, and remain here to this very day, and have yet to be released.