Spitfire is a female Pegasus pony and the captain of the aerial acrobatics group, the Wonderbolts. She is often portrayed as relaxed and down-to-earth, with a sense of humor. This corresponds with her personality. This version of the character can sometimes act very unprofessionally and even irresponsibly in some fan works. She is a termdenoting a person with a fierce temper. she is team captain and academy drill instructor. She tells ponies what they're doing wrong but also what they're doing..