Ping is a chihuahua rescued from the pound by nearsighted Ethel, who thinks he's a cat. When a pair of bumbling thieves try to break into Ethel's house to steal the money they think she has stashed away, only Ping can foil their plans.
| Actor | Role |
|---|---|
 Judge ReinholdLouie | Louie |
 Clint HowardStu | Stu |
 Lou FerrignoDogcatcher | Dogcatcher |
| BBrooke WinnHaley Jeffries | Haley Jeffries |
| MMegan Austin OberleLucretia | Lucretia |
| EEric KushnickDrac | Drac |
 Steve WhiteSpecial Agent Bruce Mechanic | Special Agent Bruce Mechanic |
| MMichelle MarSpecial Agent Ellen Miser | Special Agent Ellen Miser |
 Brian DonovanPing! (voice) | Ping! (voice) |
 Shirley JonesEthel Jeffries | Ethel Jeffries |
 Steve SusskindThor (voice) | Thor (voice) |
 Loren LesterDamien (voice) | Damien (voice) |
| TTorie LynchTracy | Tracy |
| JJason LancSteven | Steven |
 Ted GarciaT.V. Reporter #1 | T.V. Reporter #1 |
| TTammy CoburnT.V. Reporter #2 | T.V. Reporter #2 |
| EEdie MirmanCat #1 (voice) | Cat #1 (voice) |
| LLucy LinCat #2 (voice) | Cat #2 (voice) |
 Rance HowardOld Man | Old Man |