Bardo Thodol
Guest star Hiro Kanagawa, who portrays FBI special agent Takahashi, has appeared several times in "Millennium" sister show "The X-Files", in the second and fourth seasons; as well as in "The X-Files" spin-off series "The Lone Gunmen". Kanagawa would also make several more appearances on "Millennium", acting in unrelated roles in the episodes "The Time Is Now", "Human Essence", and "Bardo Thodol". The episode also featured a guest appearance by William MacDonald as FBI Agent Nolan; MacDonald would later reappear in the third season episode "Through a Glass Darkly".