When Nichols and Burrows are looking at the old high school yearbook, Nichols points at one photo and says, "Who's that kid on the end? He looks like a young Tom Cruise." Burrows responds that it is a photo of a young deceased man named Tom Reynolds to which Nichols responds that he looks like he was good friends with John Silvestri. Throughout this episode, John Silvestri is played by William Mapother, who is actually Tom Cruise's younger cousin.
Erin Dilly (Anne Silvestri) previously played the role of Isabella Gradowcyzk in episode 2.5, Chinoiserie (2002).