He was born in Caracas, Venezuela, and made his screen acting debut in the Venezuelan RCTV telenovelas "Mujer con Pantalones," "Te Tengo en Salsa," "Amantes," and "Toda una dama."

His film credits include the popular romantic comedy "Dia Naranja," but he is perhaps best known for his starring role as Alex in the hit Nickelodeon Latin America /Sony Pictures Television teen drama series Isa TKM.

That Zavarce’s real-life ex girlfriend was (and is) on- screen "Isa" love Maria Gabriela de Faría only added to the press and public frenzy around Reinaldo, and has kept them both on the covers of some of the biggest magazines across Latin America and Brazil.

In 2007 he participated (along with Maria Gabriela de Faria) on the soap opera Toda una dama (A Lady) for RCTV International playing the role of the son of a politician.

The musical telenovela was written by Mariela Romero[4] and debuted in several Latin American in September[5] and October 2008[1] and on MTV Tr3́s in June 2009.

The series is positively compared to the High School Musical film series,[7] and Band.com.br writes "The teen soap produced by Sony Pictures Television for Nickelodeon Latin America is a phenomenon among pre-teens across the Americas, all because of the adventures of Alex and Isabella (Reinaldo "Peche" Zavarce) who, together with Linda (Micaela Castelotti) Cristina (Milena Torres) and Rey (Willy Martin), show much color, music, dance and humor.