- Greg Heffley as Timmy
- Robert Jefferson as Cosmo
- Linda Jefferson as Wanda
- Manny Heffley as Poof
- Sweetie as Sparky
- Frank Heffley as Timmy's Dad
- Susan Heffley as Timmy's Mom
- Patty Ferrell as Vicky
- Rowley Jefferson as Chester
- Edd (from Ed, Edd, n Eddy) as A.J.
- Rodrick Heffley as Mr. Crocker
- Buford (from Phineas and Ferb) as Francis
- Chriag Gupta as Sanjay
- Billy (from The Grim Adventures of Billy and Mandy) as Elmer
- Pete Hosey as Jorgen Von Strangle
Ad blocker interference detected!
Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers
Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.