Yona

Yona, or Yona Yak, is a female yak and one of the Student Six who first appears in season eight of the show as a student at Twilight Sparkle's School of Friendship in my little pony. In the series finale The Last Problem, she is an employee at Rarity's Carousel Boutique years in the future. She is a struggling actor/birthday clown (quoted in Celestia’s standalone adventure) who never gets callbacks (quoted in that same episode).