The William Shakespeare verse that Reid quotes is from Act 1, Scene 1 of "A Midsummer Night's Dream."
Guest star Hanna Hall and star A.J. Cook starred together, playing sisters, in The Virgin Suicides (1999).
Brad Dourif (Adam Rain) and Hanna Hall (Connie Foster) both appeared in Halloween (2007), although they never shared any screen time.
Criminal Minds features people who work for the F.B.I. and guest star Brad Dourif's second wife Jonina Dourif at one point worked for the F.B.I. and N.S.A. as a remote viewer.
Thomas Gibson and Mark Povinelli also appeared together in an episode of Dharma & Greg, called Pride & Prejudice (2001).