Patches is a scoundrel who enjoys setting traps for unsuspecting travelers, often using their greed against them to lure them to their demise and loot their corpse. If players resist the temptation to kill Patches in revenge for trapping them, he will return to Firelink Shrine where he will act as a merchant, selling some useful items, many of which are of limited stock, as well as assorted cleric equipment, which is likely collected from earlier victims.
Little to nothing is known about Patches and his background. Judging by his dialogue, he has been previously acquainted with Shiva of the East, Solaire of Astora, Lautrec of Carim, and Petrus of Thorolund. Lautrec expresses misgivings about him and promises to have his hide the next time they meet.