|Character of Upin & Ipin|
| Yap Ee Jean (season 1-3)|
Yuki Tang Ying Sowk (season 3-now)
Mei Mei is a young Chinese girl who is easily recognizable because of wearing the red glasses.
Mei Mei is a sweet and kind person. She is also a clever student, easy to be patient and quick to act if her friends face problems or make mistakes.
|Upin | Ipin | Ros | Opah | Tok Dalang | Mei Mei | Jarjit | Ehsan | Fizi | Mail | Susanti | Dzul | Ijat | Devi | Jasmin | Muthu | Salleh | Rembo | Ah Tong | Sapy | Apin | Rajoo | Oopet | Pak Mail | Singh | Nurul | Nurul binti Ahmad | Tiger | Melati | Hamzah|