M.A. Larson

Work on My Little Pony: Friendship Is Magic M. A. Larson is most well-known for his work on My Little Pony: Friendship Is Magic, an animated television series that ran from 2010–2019 and served as the primary television adaptation of the fourth incarnation of Hasbro's My Little Pony toyline. The show's developer, Lauren Faust, had previously worked with Larson on Foster's Home for Imaginary Friends and Larson subsequently became involved with Friendship Is Magic. Larson noted that his experience with the characters of Friendship Is Magic resonated in his approach with Pennyroyal Academy. Witherspoon, in her decision to pick up the work, stated that "there is a princess story that reflects the values young women truly want to embody … These princesses are strong, independent and fierce, and the knights are their match. In telling their story, Larson has created a magical universe that everyone will love to get lost in."

Larson has since written two sequels, The Shadow Cadets of Pennyroyal Academy (2016) and The Warrior Princess of Pennyroyal Academy (2017).