A 7-year-old girl befriends a teacup pig named Arlo.
| Actor | Role |
|---|---|
 Drake BellArlo | Arlo |
 Joey LawrenceDavid | David |
 Jennifer Bini TaylorIlana | Ilana |
 Lindsey BlanchardTalia | Talia |
 David GereDale the Jogger | Dale the Jogger |
 Bill MoseleyErnie Dorko | Ernie Dorko |
 Mike CerroneRalph | Ralph |
 Shanna StrongSusie | Susie |
 John HenniganTommy | Tommy |
 Gianni PaoloGuy in Park | Guy in Park |
 Jonathan LipnickiBuster (Voice) | Buster (Voice) |
 Ian NilesZack | Zack |
 Tracy NelsonMrs. Pritchett | Mrs. Pritchett |
| JJoanna KossRobin | Robin |
| CCastille LandonJessica | Jessica |
 Nick PrincipeTom the Drummer | Tom the Drummer |
 Amber FrankMarcia | Marcia |
 Lindsay LambSamantha | Samantha |
| NNeville HeadleyMayor Hanson | Mayor Hanson |
| EElla StockAlexandra | Alexandra |