- "Hey! Who's the dummy here?"
- Leland during his ventriloquism act.
When Greg Heffley comes to Rowley's house one night when he is being babysat, Leland unexpectedly answers the door instead of Heather. As Greg is about to leave, Leland invites him inside to play a game called Magick and Monsters, which he finds that he enjoys.
Greg starts going to Leland's house every day after school to play Magick and Monsters, eventually drawing his mom's suspicion. She comes along with him to one of their games to see what it's about. Eventually, she asks to join the game, so Leland sets up a character for her, even though Greg tries to signal to him that it's a mistake. The rest of the game progresses awkwardly, as she doesn't understand or approve of some of the game's mechanics.
During the Winter Talent Show, Leland does a ventriloquism act that earns the grand prize because the judges think that it is "wholesome". This makes Greg wonder if Rodrick is right about him being a nerd.
- In Wimpy Wonderland, it's shown that he lives on 32 Learly Street.
- He may have been replaced by Fregley in the Rodrick Rules movie, as Fregley did a ventriloquism act for the talent show during it.
- In the online book, he is noted to be a very good gamer.
- Diary of a Wimpy Kid (online)
- Diary of a Wimpy Kid: Rodrick Rules
- Diary of a Wimpy Kid: Rodrick Rules (film) (appears in a bonus feature and a short cameo).
- Diary of a Wimpy Kid Do-It-Yourself Book