Midnight Sparkle is the climax villainess and demon form of Twilight Sparkle in My Little Pony Equestria Girls: Friendship Games, My Little Pony Equestria Girls: Legend of Everfree and My Little Pony Equestria Girls: Santiago In Boots.
Played Hibernation Sandy Cheeks in TomBob CatPants
Played Jubileus the Creator in Kai-Lanetta
Played Summerween Trickster (true form) in Canterlot Falls
Played Mundus in Yellow Princess May Cry series
Played Lucifer in Annierella
She is a cat
Played Shark in Help! I'm a Pet (Santiago Style)
She is Joe's dimwit bodyguard