Cepeda got a role in the soap opera Las Juanas, opposite Susana Torres, getting the attention of some TV producers who offered her jobs in prime time shows, such as the leading role in Luz Maria (1998), co-starring Christian Meier and Rosalinda Serfaty, and that as Fiorella Morelli Flores de Mejía Guzmán in Pobre Diabla (2000), opposite Salvador del Solar and Santiago Magill.