Marc Letzmann, was better known by his ring name Excalibur, is a retired American professional wrestler and the commentator for All Elite Wrestling (AEW). El is a one of the six founders of Pro Wrestling Guerrilla, where he will continues to work as the company's "Liaison to the Board of Directors". After retiring from the in-ring competition in 2007, he was became the company's lead play-by-play commentator.