Mr. Shropsharp

Mr. Shropsharp is a character from one of Greg Heffley's comics, although he tried to write it as a children's book. He first appeared in "Wise Up, Mr. Shropsharp!" It was about him stating an opinion that was untrue, which was that he hated polar bears, and later on, he learns his lesson. It later shows him in the hospital, and the doctor says that Tobuk, a polar bear, saved his life.

Trivia
In the online version of "Diary of a Wimpy Kid", Mr. Shropsharp is known as Mr. Lockerman.