Peach Wilkins is a character and mini-boss in the original BioShock.
He initially found himself working at Fontaine Fisheries but had greater ambitions. Eventually, his boss Frank Fontaine recruited him into his smuggling operation where he rose through the ranks.
Wilkins became more and more paranoid, to the point that he believed Fontaine was out to get him, at which point he sealed himself, along with some fellow smugglers, inside the freezer at Fontaine Fisheries.