The man searching for a signal calls himself "Yert Yawallac". Spelled backward it is "Trey Callaway", the name of a Supervising Producer on the series and uncredited guest in the episode ("Disgruntled Man").
- Neil Hopkins (Yert Yawallac) appears in the CSI: Crime Scene Investigation (2000) episode 4x4 (2005) (#5.19) and the CSI: Miami (2002) episode Hunting Ground (2011) (#9.16) in different roles.
- Chris Mulkey (Bernie Benton) appears in the CSI: Crime Scene Investigation (2000) episodes Feeling the Heat (2003) (#4.4) and Tell-Tale Hearts (2011) (#12.2) in different roles.