Caio de Castro Castanheira (born 22 January 1989), is a Brazilian actor, model and amateur racing driver who competes in the Porsche GT3 Carrera Cup Series.
Castro was born in Praia Grande, a city located on the coast of the state of São Paulo. At age 18, Caio left his parents' home in São Paulo to live in an apartment in Barra da Tijuca, Rio de Janeiro. Caio was discovered in a contest on Caldeirão do Huck television show, before that he worked with event production.