Capper is one of the supporting protagonists in My Little Pony: the Movie. He is a cat and was a con artist originally from Abyssinia. He was the first known victim of the Storm King's attack.
He is voiced by Taye Diggs.
Capper, a smooth-talking (and singing) con-artist, was once a swanky aristocrat living the high-life with pride and dignity. That is, until Storm King came into power. A deal gone wrong turned Cappers threads on fleek into colorless rags, leaving Capper penniless and in a lifelong debt with the Storm King. To make ends meet, he relies on his wit and charm, distracting unsuspecting victims from his quick hands and swift tail. Cappers crimes aren't driven by malice. At his core, he feels a deep insecurity at his fall from grace, and believes his appearance dictates his status.