His appearances in recent years at African American Repertory Theatre, WaterTower, Upstart and Undermain now seem like mere warm-ups for Christopher Dontrell Piper's explosive performance this season in Tracy Letts' Superior Donuts at Theatre Too. As a young man full of ideas about how to boost business at a failing Chicago bakery, Piper formed a perfectly balanced acting partnership with co-star Van Quattro. The most natural actor on any Dallas stage — he wears every character as if he were born to play him — Piper has only just begun to show directors and audiences what he's capable of.