Arthur Heffley

"Murp Rrup"

- The 2 most common lines of Arthur Heffley.

Arthur Heffley is the great-uncle of Greg Heffley. He doesn't say words and instead says "Murp" and "Rrup".

Trivia

 * Due to the reason he can't talk,he must be quite old.
 * He is likely the brother of Grandpa.

Appearances

 * Diary of a Wimpy Kid: The Ugly Truth (first and only appearances)