|Character of Upin & Ipin|
| Noor Ezdiani Ahmad Fauwzi (season 1)|
Ida Shaheera (season 2-7)
Khairunnisa (season 7-9)
Neysa (season 10-now)
Balqis Fadhullah Lee (Geng: The Adventure Begins)
Ros is a teenage girl who is studying in secondary school. At home, Ros always wears baju kurung. But her appearance has changed over the new; she looks dressed in pink long-sleeve shirt and wearing trouser that look like long sports pants. She also wears a hijab during school, or celebrating Eid.
Ros is firm with her brothers, and often scolded Upin and Ipin when he found them doing naughty things. Sometimes a firm stand against her brothers is reprimanded by Opah more lenient with the twin brothers. Nevertheless, Ros still loves Upin and Ipin notwithstanding.
- In season 9, it was revealed that Ros have a pen-pal from Japan that she frequently writes to.
- Ros has a good drawing skill. It's shown when she exposed as the author of "Kembara Kembar Nakal".
|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|