Trining and Mario are a young married couple who are happy with their lives. However, Aling Badang, the titular mother-in-law who did not laugh, is very serious all the time. Will she ever feel happiness and laughter or just become frowning serious woman forever?
| Actor | Role |
|---|---|
 Gloria RomeroTrining | Trining |
 Ric RodrigoMario | Mario |
 ChichayLola Bella | Lola Bella |
| TTolindoySebio | Sebio |
 Etang DischerBadang | Badang |
 ArurayKetty | Ketty |
 Bella FloresMargarita | Margarita |
 Martin MarfilMax | Max |
| PPrecy OrtegaNot listed | Not listed |
| IImelda ConcepcionNot listed | Not listed |
| LLeonora RuizNot listed | Not listed |
| EEmma AquinoNot listed | Not listed |
| MMarcela GarciaNot listed | Not listed |
| AApolonia AguilarNot listed | Not listed |
| NNila CapistranoNot listed | Not listed |