to the school of Sociology of the same house of studies. But then, he discovered his true vocation was journalism. From there he became obsessed with the profession and decided to leave Public Accounting. In an interview with The National, Daniel would comment: "I, at that time studied accounting, but saw her (Laura) and I loved it. Then Boris, and, finally when I was three semesters to graduate I decided to leave Administration and study Social Communication. I am a journalist due to my sister. " In this new university period, he stood out for his academic excellence receiving several awards from the hands of Asalia Venegas, who was then, director of the School of Journalism. On 30 January 2004, he graduated as Social Communicator in the promotion “Fifty years of the Great Hall” in second place among 75 graduates after passing the thesis: "Audiovisual Economic Journalism in the Venezuelan Context." He earned his degree in the same academic act that his younger brother, Boris and another journalists Enma Carolina Agurto (Current director of the Presidential Press Office of the Republic) and Evelyn Guarenas (Reporter of Venezolana de Television). Early in his career After being summoned by journalist Vladimir Villegas, by then President of Venezolana de Television, he joined as a reporter, a week before his graduation ceremony, to cover the Economic Source (the subject of his thesis). Appearing for the first time on screen 23 January 2004, he was later moved to the Political Source after the arrival at the rectory of the television plant journalist Jesús Romero Anselmi also. On 4 March the same year, travels to Haiti to cover the aftermath of the coup against President Jean-Bertrand Aristide, being the only Venezuelan television journalist coverage. He assists as part of a humanitarian aid delegation sent by Venezuela and headed by Civil Protection. Castellano produces during their stay in that country his first audiovisual solo program "Haiti in the shadow of the world", the same year he was transferred as a news correspondent in Zulia state where he remained for a year. As a reporter, Daniel joined the presidential press group. He accompanied, from there, Venezuelan President Hugo Chávez on international tours taking the opportunity to interview, with the passing of the years, presidents like Luiz Inácio Lula da Silva (in Brazil), Ricardo Lagos and Michelle Bachelet (in Chile), Rafael Correa (Ecuador), Nicanor Duarte (Paraguay), Jose "Pepe" Mujica