When the team explains to Luke and Tara who Tobias Hankel is, JJ mentions that his abduction and drugging of Reid occurred ten years earlier. This aired almost exactly ten years after Revelations (2007), missing the anniversary of its airdate by just a week. Coincidentally, both feature the quotation of the Bible verse from Ecclesiastes 7:20 ("there is not a righteous man on Earth who does what is right and never sins").
Clara Seger didn't appear in the backdoor pilot, Beyond Borders (2015). Her role as Jack Garrett's second-in-command was originally filled by Lily Lambert (Anna Gunn). Clara (Alana De La Garza) was created to replace Lily following Gunn's unexpected decision to drop out of Criminal Minds: Beyond Borders (2016).
First time we see the FBI BAU kitchen
Very fitting that the closing quote for this episode is from Neil Gaiman since Dr. Spencer Reid is a huge fan of Doctor Who ( 2005 - ). Neil Gaiman wrote two Doctor Who episodes: season 6 episode 4, "The Doctor's Wife" (2011) and season 7 episode 12, "Nightmare in Silver" (2013).