Sonny is Usnavi’s younger cousin, although he’s usually at least high school aged, and helping to run the convenience store with Usnavi.
Lin-Manuel Miranda is presumably going to make some changes to the characters and plot of In The Heights, to best adapt the Tony Award winning musical onto the silver screen.
One of these changes can be seen with the casting of Gregory Diaz as Sonny.
But he’s going to be much younger in the movie version, and it should be interesting to see how Diaz balances Sonny’s comedic beats with his penchant or social justice.