- Zachary Gordon Greg Heffley
- Steve Zahn Frank Heffley
- Chloë Grace Moretz Angie Steadman
- Alex Ferris Collin
- Devon Bostick Rodrick Heffley
- Rachael Harris Susan Heffley
- Robert Capron Rowley Jefferson
- Karin Konoval Sra. Irvine
Cinemanía > Películas > Diario de Greg > Reparto