Matthew Wyatt Elrod (born October 2, 1988), better known as Wyatt Nash, is an American television personality and actor. Under his birth name, he was a contestant on the 22nd season of the American competitive reality television series, Survivor. Following his appearance on Survivor: Redemption Island, he chose to adopt the name Wyatt Nash (his middle name plus Nash for his birth city, Nashville) as his stage name. Most recently, Nash has appeared as Nigel Wright on the ABC Family series, Pretty Little Liars, and the Lifetime television adaptation of V. C. Andrews's Petals on the Wind, portraying the character of Christopher. As of 2019, he portrays the character of Charles Smith on Riverdale.