This episode marks the return of David Duchovny to the main cast, and also credits Mitch Pileggi in the opening titles. Five people are credited in the main credits: David Duchovny (Fox Mulder), Gillian Anderson (Dana Scully), Robert Patrick (John Doggett), Annabeth Gish (Monica Reyes), and Mitch Pileggi (Walter Skinner).
In the main title for the ninth season, a piece of paper flashes across the screen listing "FBI Contacts: Witnesses and Contributors." The names on the list are screen names of the series' on-line fans. For episodes #9.01-#9.11, the names were randomly picked from various X-Files message boards. For episodes #9.12-#9.19, the names came from contest entries.