Luna and her evil alter ego Nightmare Moon
I feel kinda bad for luna y'know
being banished to the moon for 1000 years in isolation and eating nothing but moon rocks can really do a number on ones mental health, to the point where she gave up fighting who she is and allow herself to get taken by her darker half....
Damn you Lauren Faust and your incredible genius child, My Little Pony Friendship is Magic
EDIT-I seriously didnt mean to make them so..masculine y'kno
so THEY BOTH are girls