Mack is the ringleader of the boys that live at the Palace Flophouse. He is the biggest hustler in Cannery Row and is always working on a scheme with the help of his friends, Hazel, Whitey No. 1, Whitey No. 2, and sometimes even Doc when he can rope him into it. Mack is the mastermind of the plan to fix doc, he is a smart man who is determined to find a way to get what he wants. He uses manipulation and often coercion to get his way but he knows what he is doing isn't honest. In this novel, Mack is the one that puts together the raffle and the one that initially tries to fix Doc.