When did " The Glee Project " start airing ?
The season introduced several new recurring characters : Chord Overstreet was cast as transfer student Sam Evans ; Darren Criss appeared as Blaine Anderson , lead singer of rival glee club the Dalton Academy Warblers ; Cheyenne Jackson played Dustin Goolsby , the coach of rival glee club Vocal Adrenaline ; Charice appeared as Sunshine Corazon , a foreign exchange student from the Philippines and a rival to Rachel who ultimately joins Vocal Adrenaline ; John Stamos played dentist Carl Howell , a love interest for Emma ; and Gwyneth Paltrow appeared as substitute teacher Holly Holliday .