The CAST AND CHARACTERS of Ina Kapatid Anak
- Kim Chiu as Celine - poor but optimistic; loud and talkative
- Maja Salvador as Margaux, rich and glamorous
- Xian Lim as William "Liam"
- Enchong Dee as Ethan
Both Celine and Margaux are born fighters and they do not allow their families to be maltreated by anyone.
- Janice de Belen as Beatrice Marasigan
- Cherry Pie Picache as Theresa Apolinario
- Ronaldo Valdez as Zacharias Apolinario
- Eddie Gutierrez as Lucas Elizalde
- Ariel Rivera as Julio Marasigan
- Pilar Pilapil as Yolanda Elizalde
- Jayson Gainza as Oscar
Created by: Danica Domingo
Directed by: Don Cuaresma and Jojo Saguin