Gregory Diaz IV was ‘fangirling’ when he auditioned for ‘In the Heights’
in the film adaptation of Lin-Manuel Miranda’s musical, in theaters and on HBO Max Friday. In the movie, about the tightknit Washington Heights neighborhood of upper Manhattan, he plays Sonny, the scrappy cousin of Anthony Ramos’ character, Usnavi, who owns the bodega where Sonny works.Diaz is a New Yorker through and through.