Will is the mechanic in Dante Manor. He spends his time maintaining his work tools in the garage while patiently listening to Michael's rants about Jazz music. He also fixes any broken appliances in the Utility room.
When first encountered, he can be heard confessing to Michael about a nightmare in which he was burning alive with no hope of saving himself. Considering the 16th chapter, that was a premonition.
He tasks Lucius with finding a tire iron in the storage room.