A loyal follower and friend of DIO, Pucci aspires to implement a plan long formulated by DIO to "achieve heaven". Working as a chaplainW at Green Dolphin Street Prison, he secretly frames Jolyne Cujoh and uses her as bait to lure Jotaro Kujo and his memories of DIO's Diary.

Pucci is a Stand User and manipulates the mind and soul through his Stand, Whitesnake.