The first appearance of Patricia Belcher as frequently recurring Assistant US Attorney Caroline Julian.
Booth and Brennan eat lunch in this episode at a diner in New Orleans; starting in season 2, the same set, with some redressing, becomes a regular location for the show as the fictional "Royal Diner" in DC.
First confirmation that Booth is Catholic, and first of many exchanges where Booth defends the doctrines of Christianity against Brennan's skepticism.