Los Bastardos is based on the Cardinal Bastards series of Precious Hearts Romances Presents. The story follows the lives of five brothers struggling with one another for their rightful place in their father's heart. The root of their conflict stems from betrayals and secrets surrounding the individuals surrounding Don Roman Cardinal.

• Ronaldo Valdez
• Gloria Diaz
• Jake Cuenca
• Marco Gumabao
• Albie Casiño
• Joseph Marco
• Diego Loyzaga
• Joshua Colet