It was then when telenovela producer Carla Estrada invited him to participate in some episodes of María Isabel (1997), alongside Adela Noriega.

He later received roles in Amor Gitano (1999), La casa en la playa (2000) and Pedro Damián's Primer amor... a mil por hora (2000), where he played Imanol Jáuregui Tasso, alongside Ana Layevska, Anahí, Kuno Becker, and Sebastián Rulli.

Soon after, Valentino participated in the telenovela El juego de la vida (2001), where embodied Juan Carlos Domínguez, a coach of girls' football.

He also acted in Amar Otra Vez (2003) and Inocente de Ti (2004) as Julio Alberto Castillo Linares, opposite Camila Sodi, and Karla Monroig.

His last venture is called "Artesanos", a promising film by creator Santiago Pando, a famous mystic, well known for having been the brain behind the successful political campaign that placed Vicente Fox as the first Mexican President to win over 80 years of the ruling party PRI.