Cristian Sainz Castro was born the 8 of December of 1974 in Mexico City. His parents are the singer and actress Verónica Castro and the comedian Manuel "the Loco" Valdés.
His first experience in show business came when he performed the song "Gallito feliz", which he occasionally includes in his concerts. He also made an appearance in the soap opera "El Derecho de Nacer".
At the age of seven, Cristian managed to become a radio announcer with his own program: "The Hour of Cristian". He later participated in the "Festival Juguemos a Cantar" and in the musical work "Mame" beside Silvia Pinal, which was first of several performaces to earn him several prizes by the time he was nine years old.
In 1991, he recorded his first of several albums "Agua Nueva", which included the song "No podrás" that became a hymn in the discotecas. But despite his success as a singer, Christian went to New York to study film with a desire to become a director.