Joselito "Tito" Escalera (Tito Sotto) - One half of the Escalera brothers, who plots harebrained schemes in every episode. Josemari "Joey" Escalera (Joey De Leon) - The other Escalera sibling. Miss Tapia has a crush on him. Victorio "Vic" Ungasis (Vic Sotto) - the good-looking and smart teacher's pet with a chick-magnet personality. The Escaleras often pick on him during class. Later became a professor of Wanbol University. Liwayway Gawgaw Tapia aka Miss Tapia (Mely Tagasa) - Wanbol University's resident professor who often gets on the Escalera brothers' nerves. Although she admires Joey, Miss Tapia was romantically connected with Mang Temi.Her favorite student is Victorio Ungasis
| Actor | Role |
|---|---|
 Tito SottoTito Escalera | Tito Escalera |
 Vic SottoVic Ungasis | Vic Ungasis |
 Joey de LeonJoey Escalera | Joey Escalera |
| BBing AngelesNot listed | Not listed |
| MMely TagasaNot listed | Not listed |