Starlight Glimmer is a secondary supporting hero in My Little Pony: Friendship is Witchcraft and My Little Pony: The Book of Golden Oak, who made her first debut in the season 3 episode 2 "The Spy Who Shoved Us", where she is shown working and spying for the Shredder (Kevin Michael Richardson) and his men, but it turns out she isn't. She is Sunburst's childhood friend and wife. She is voiced by Kelly Sheridan the English dub, who also voiced Princess Morbucks in The Power Puff Girls Z and Eri Kitamura in the Japanese dub, who also voiced Juri Han in Street Fighter series.
According to Twilight Sparkle's official journal, Starlight's personality has changed from hero to villain, from villain to anti-villain, from anti-villain to hero once again.
- (to Flash Sentry) Me? A servant? You shall pay for your insolence.
- Mr. Glimmer (father)
- Mrs. Glimmer (mother)
- Sun Swirl (mother-in-law)
- Sunspot (father-in-law)
- Kelly Sheridan (English)
- Eri Kitamura (Japanese)