Ishaan Awasthi is an eight-year-old whose world is filled with wonders that no one else seems to appreciate. Colours, fish, dogs, and kites don't seem important to the adults, who are much more interested in things like homework, marks, and neatness. Ishaan cannot seem to get anything right in class; he is then sent to boarding school, where his life changes forever.
| Actor | Role |
|---|---|
 Darsheel SafaryIshaan Nandkishore Awasthi | Ishaan Nandkishore Awasthi |
 Aamir KhanRam Shankar Nikumbh | Ram Shankar Nikumbh |
 Tisca ChopraMaya Awasthi | Maya Awasthi |
 Vipin SharmaNandkishore Awasthi | Nandkishore Awasthi |
 Tanay ChhedaRajan Damodaran | Rajan Damodaran |
 Sachet EngineerYohaan Awasthi | Yohaan Awasthi |
 Girija OakJabeen | Jabeen |
| SShankar SachdevTiwari Sir | Tiwari Sir |
 Rajgopal IyerGeorge Sir | George Sir |
| RRavi KhanvilkarMr. Holkar | Mr. Holkar |
 M. K. RainaBoarding School Principal | Boarding School Principal |
 Meghna MalikVictoria Teacher | Victoria Teacher |
| LLalita LajmiLalita Lajmi | Lalita Lajmi |
| AAyaanIshaan Awasthi - 10 months old | Ishaan Awasthi - 10 months old |
| VVeer MohanIshaan Awasthi - 2 years old | Ishaan Awasthi - 2 years old |
| AAniket EngineerYoung Yohan Awasthi | Young Yohan Awasthi |
| BBugs Bhargava KrishnaSen Sir | Sen Sir |