Brian Heder
An old-school Keys smuggler still working out of his boat yard, and the man letting Jason live rent-free.
Brian ran product through the Keys back when that trade was at its peak, and has not stopped. He works out of a boat yard alongside his wife Lori, and he is Jason's landlord in the loosest sense of the word: Jason stays there and does not pay.
In the Extended Look he functions as an intermediary, the man who knows somebody who needs a job doing tonight. That is a familiar shape in a Grand Theft Auto opening, and it usually means the jobs get worse.
Reporting on the Extended Look identified his voice as character actor Stephen Root. Rockstar has not published a cast list.