Dulce Amargo is a Venezuelan telenovela produced and aired on Televen in co-production with Mexican channel Cadena Tres and distributed internationally by Telemundo. It is a remake of the Chilean telenovela Los treinta which is adapted by Venezuelan writer Iris Dubs. Official production of Dulce Amargo began on June 11, 2012, and premiered on October 31, 2012 in the prime-time hours. Scarlet Ortiz and Erik Hayser star as the main protagonists with Fernando Noriega and Juliet Lima as the main antagonists. The co-protagonists include Roxana Díaz, Juan Carlos Martín del Campo, Alejandra Ambrosi, Carlos Guillermo Haydon, Alejandra Sandoval, Juan Carlos García and Anabell Rivero. It is the second telenovela produced in high definition by Televen after Nacer Contigo and the first to be co-produced with Cadena Tres. The cast is composed of Venezuelan, Mexican and Colombian actors.