Sherlock Sammy

Sherlock Sammy is a fictional kid who appears in the book Sherlock Sammy Does it Again. He is a child detective whos figures out mistakes in crimes and reveals them, making the criminal look like an idiot. He only appears because Greg says he is using Sammy's book for a book report. He even said he used the same exact book for five years straight!

Trivia

 * In Rodrick Rules, Sherlock Sammy has a striped shirt, but in the online book and on the badge (displayed), he has a black shirt.
 * He is probably named after Sherlock Holmes.
 * He's reference at Diary of a Wimpy Kid: The Last Straw page 57