The Jack Family is at it again, as they enter the International World of Wiener Dog Racing. The kids sneak away to enter Shelly in the Internationals, and find themselves caught in a devious plot by Mrs. Merryweather that may change wiener dog races forever! Can little Shelly, the champion dog from the US, really take on the World?
| Actor | Role |
|---|---|
 Morgan FairchildMiss Merryweather | Miss Merryweather |
 Jason LondonPhil Jack | Phil Jack |
 Bryan BattJudge Brown | Judge Brown |
 Julian FederDanny Jack | Danny Jack |
 Caitlin CarmichaelBridget Jack | Bridget Jack |
 Cynthy WuEtsuko | Etsuko |
 Corsica WilsonAunt Jenny | Aunt Jenny |
| AAustin AndersonSkip Jack | Skip Jack |
| SSelah JoyAyameko | Ayameko |
 Emmy PerryKitty | Kitty |
 Scott ButlerJudge Brown's Assistant | Judge Brown's Assistant |
 Olga KayDarya | Darya |
| DDaisy TrainaSuperfan | Superfan |
| MMyriam BlanckaertFrench Anchor | French Anchor |
| KKara ConnollyNewscaster | Newscaster |
 Linc HandRobert Smith | Robert Smith |
 Masami KosakaRace Photographer | Race Photographer |
 Johnny KostreyRussian News anchor | Russian News anchor |
 P.J. MarinoEdward the Mechanic | Edward the Mechanic |
| MMila MiesnerShelly the Dog | Shelly the Dog |
| AAlexis MinerYoung Mrs. Jack | Young Mrs. Jack |
 Chris MossMr. Bright | Mr. Bright |
| DDora Negri-CrutchfieldBaltic Racer | Baltic Racer |
| RReggie RacerIron Hammer | Iron Hammer |
 Melissa Jane RodriguezKitty's Mom | Kitty's Mom |
 JJ SnyderReporter | Reporter |