Charlie Brown and a few of his friends attend a camp, and there they meet Joe Agate, a lying bully who offers to teach kids the game of Marbles without telling them it's for keep. Then he takes their marbles for good. When Rerun is tricked and gets his marbles taken, Charlie Brown must use his own marbles to help get the other kids their marbles back. The only problem is, Charlie Brown doesn't know how to play.
| Actor | Role |
|---|---|
| SSpencer Robert ScottCharlie Brown (voice) | Charlie Brown (voice) |
| SStephanie PattonLucy Van Pelt (voice) | Lucy Van Pelt (voice) |
| BBenjamin BryanLinus Van Pelt (voice) | Linus Van Pelt (voice) |
 Rory ThostPepperment Patty (voice) | Pepperment Patty (voice) |
| JJessica GordonMarcie (voice) | Marcie (voice) |
 Jimmy BennettRerun (voice) | Rerun (voice) |
 Taylor LautnerJoe Agate (voice) | Joe Agate (voice) |
 Bill MelendezSnoopy (voice) | Snoopy (voice) |
 Jolean Wejbe2nd Girl (voice) | 2nd Girl (voice) |
 Paul ButcherKid (voice) | Kid (voice) |