El Verano de la Señora Forbes gave Gattorno his first exposition in Mexico and was also seen in the Netherlands.
Gattorno travelled to Chile before 1993 was over, to participate in filmmaker Paola Castillo's short production, Los Perros Tambien Tienen Hambre.
Having established himself in Mexico, Gattorno debuted on Televisa's telenovelas in 1995, acting as Josè Maria in La Dueña.
In La Dueña, Gattorno acted alongside well-known Mexican actors such as Angélica Rivera, Salvador Sánchez and Eduardo Santamarina, among others.
In 1996, Gattorno acted alongside another list of well-known actors, including Costa Rican Maribel Guardia and Mexicans Joan Sebastian (Guardia's longtime husband), Olga Breeskin, Sebastian Ligarde, Claudio Báez, Itatí Cantoral, César Bono, José Ángel Garcia, Carlos Miguel, Guadalupe Esparza (of the well-known music group Bronco) and many others in Tu y Yo, which became an international hit, becoming one of the most viewed shows among Hispanics in the United States.
Tu y Yo was followed by Cañaveral de Pasiones, where Gattorno acted alongside fellow Cuban César Évora and other well-known Mexican actors, such as Angélica Aragón and others.
Cañaveral de Pasiones was an important stepping stone in Gattorno's career; after this soap opera was over, many media outlets began to talk about his relationship with Klitbo, with whom he did not have any children.
During 2002, Gattorno participated in a telenovela that was geared towards teenagers and which became a major hit: alongside Daniela Luján, Belinda Peregrin, Laura Flores and former Menudo Johnny Lozada, among others, Gattorno acted in Cómplices al rescate, a romantic story about youngsters trying to repair some broken relationships.
By then, Gattorno's fame had made him appear on the covers of some major Spanish language magazines in the United States.
In 2005, Gattorno was incorporated as a new Telemundo star in the network's original production Tierra de Pasiones where he played the role of Pablo Gonzalez and shared credits with stars like Venezuelan actress Gabriela Spanic, Argentine actor Saul Lizaso and legendary Mexican actor and comedian Héctor Suárez.
Gattorno played Roberto in the 2005 movie La Migra, which was titled Murder on the Border to English speaking audiences.
In 2013, he joined the cast of the telenovela Lo Que La Vida Me Robó playing Sandro Navarez, the secondary villain.