Medverkande
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Zachary GordonGreg Heffley - Robert CapronRowley Jefferson
- Rachael HarrisSusan Heffley
- Devon BostickRodrick Heffley
- Chloë MoretzAngie Steadman
- Steve ZahnFrank Heffley
- Connor FieldingManny Heffley
- Owen FieldingManny Heffley
- Karan BrarChirag Gupta
- Grayson RussellFregley
- Laine MacNeilPatty Farrell
- Alex FerrisCollin
- Andrew McNeeCoach Malone
- Belita MorenoMrs. Norton
- Rob La BelleMr. Winsky
- Nicholas CareyPete Hosey
- Samuel Patrick ChuCarter
- Donnie MacNeilWade
- Samantha PageShelly
- Thor FreudenthalRegissör
- Nina JacobsonProducent
- Brad SimpsonProducent
- Jeff KinneyProducent
- Ethan SmithProducent
- Jeff FilgoFörfattare
- Jackie FilgoFörfattare
- Gabe SachsFörfattare
- Jeff JudahFörfattare
- Theodore ShapiroMusik