Josh McDermitt is an American film and television actor and comedian. He is best known for playing Eugene Porter on AMC's The Walking Dead. In 2006, McDermitt appeared on Last Comic Standing as a contestant. McDermitt had a main role on the sitcom Retired at 35 from 2011 to 2012, playing the character Brandon.

Eugene Porter is a fictional character from the comic book series The Walking Dead and is portrayed by Josh McDermitt beginning in the fourth season of the American television series of the same name. In both media he claims to be a scientist who knows the cure to the zombie plague and is being escorted to Washington, D.C. by Sgt. Abraham Ford and Rosita Espinosa, and encounter Rick Grimes and his group and recruit them to assist their mission.