Principal Abacus Cinch (simply known as Principal Cinch) is the villain of My Little Pony Equestria Girls: Friendship Games. She is a headmistress of Crystal Prep Academy. She is voiced by Iris Quinn.
Planning to kill Mark Bing
Cinch had sent one of her students to find a treasure on a Mexican American land. The teenage boy named Mark Bing (Dylan Bruno), came from Maine was to steal the treasure from them and hand it to Cinch. However, Mark Bing fell in love with an unnamed girl and married him. Cinch had Mark Bing slaughtered 16 years later.