Justin Spitzer

Justin Spitzer is a student that presumably attends Westmore Middle School in Greg Heffley's year. He attended the Lock-In as a mole, telling teachers where the kids hid their junk food and was being payed off with the kids' snacks by the teachers. He only appears in The Ugly Truth.==Appearances==
 * Diary of a Wimpy Kid: The Ugly Truth (First and only appearance)