Sylvester has eight lines.

Sylvester Sinistra is a mobster who was in charge of overseeing the construction of a panic room in the Harbormaster hotel where his boss could take shelter from rival gangs and from the police if necessary. On the day of the bombs, Sinistra was present for the final touches being put on the shelter. He ends up becoming trapped in the shelter with his boss and over the following months, the two men embark on a romantic relationship. When we see Sinistra, he is on the phone to his boss confirming that the bunker is complete.