Harry Shum Jr has confirmed he will return for the special 100th episode of Glee which airs this Spring, according to Carter .
The entire cast has been invited back and executive producer Ryan Murphy is awaiting all the responses.
Others confirmed to be returning include Amber Riley and Mark Salling.
Meanwhile, Shum is offering fans the Ultimate Gleek Experience.
He and Glee co-star Kevin McHale are asking fans to donate $10 or more to the non-profit Invisible Children which is dedicated to rehabilitating children soldiers in Africa, reports Broadway World
Anyone who donates by January 17th will be entered to win the Super Secret Glee Experience.
You can find more details in Broadway World.
You can learn more about who might return for the 100th episode in Carter .