Chuck is a member of Lightning McQueen's pit crew before he discovered Radiator Springs. In the Dinoco 400, Chuck was seen commenting on McQueen attitude for not changing his tires which ultimately leads to the team leaving McQueen due to his attitude. When he was released in the die-cast line in early 2007, Pixar simply named him 'Not Chuck' because in the movie, he had said, "My name is not Chuck." Also, in the credits, he was listed as "Not Chuck". It is unknown what Chuck's real name is.