The sanitation workers, Sal and Murr, use their real names, and also refer to their "The Tenderloins" comic companions Joe and Q, all four of which star in the show Impractical Jokers (2011). Murr even comments about them playing a practical joke on him in this episode.
Mr. Morales is the same actor who plays Detective Morales on Sleepy Hollow (2013). The previous episode had Ichabod Crane and Abby Mills from Sleepy Hollow (2013) appear.
The Senator's wife tells Booth and Aubrey that she and the senator grew up in "BYU-can-on." Buchanan County, Va. is pronounced, "Buk-an-an." They are VERY quick to correct folks on that!
Hodgins reports that a murder victim's last meal included pigeon. When prepared and eaten as food, pigeon is more often called "squab".