In the final film of the series, Chip and his "father" attend a robotics convention. Here, Dr. Carson is kidnapped and replaced by an android. Can Chip and his newfound friends save Dr. Carson from a dangerous competitor?
| Actor | Role |
|---|---|
 Jay UnderwoodChip Carson | Chip Carson |
 Alan ThickeJonas Carson / Bonus | Jonas Carson / Bonus |
| AAdam PhilipsonKyle Roberts | Kyle Roberts |
 Betsy PalmerAunt Mildred | Aunt Mildred |
| RRosa NevinOfficer Kate Morgan | Officer Kate Morgan |
 Robert MetcalfeDr. Filmore | Dr. Filmore |
 Sheelah MegillMiss Prism | Miss Prism |
 Ken PogueBundy | Bundy |
 Jerry WassermanTourist Man | Tourist Man |
 Stephen E. MillerSgt. Murphy | Sgt. Murphy |
 Cavan CunninghamDoorman | Doorman |
 Robert ThurstonTechnician | Technician |
 Christopher NeameDr. Frederick Berrigon | Dr. Frederick Berrigon |
 Veena SoodAutograph Woman | Autograph Woman |
| CCarol MannTourist's Wife | Tourist's Wife |
 Denalda WilliamsAirport Guard | Airport Guard |
| DDrew ReicheltTrucker | Trucker |
 Frances FlanaganPhoto Woman | Photo Woman |
 Bobby StewartPoliceman | Policeman |
| GGwyneth HarveyWoman In Car | Woman In Car |
| DDavid HayAutograph Man | Autograph Man |
 Michael J. RogersPhotographer | Photographer |