Mac Digby

Mac Digby is Greg's idol in Diary of a Wimpy Kid: The Long Haul. He is a wealthy Youtube video Gamer whom Susan hates a lot. His catchphrase is," Dat's how Digby do it!" He is at Player Expo when he meets Greg. He is startled when he sees him, and Greg accidentally powers off the game. When Susan reveals that Greg is Diaper Hands, he and the audience chant, "Diaper Hands! Greg Heffley!" He is not seen again for the rest of the film.

He is played by Joshua Hoover.