Jon Hamm who plays Reverend Richard Wayne Gary Wayne, was Ellie Kemper's high school drama teacher when she was 14 years old. Kimmy was taken by the Reverend when she was 14.
During the trial, the two prosecutors working for the DA are made to look the same as the people who prosecuted O.J. Simpson; Marcia Clark and Chris Darden.
The Reverend (Jon Hamm) refers to "The Andromeda Strain" by Michael Crichton as the good book. In an episode of Mad Men, Hamm's character Don Draper can be seen reading the same book while stranded in a motel room.
The cover story of the TV Guide that Titus reads in the cold open is "Top 25 TV Stars You Can't Memorize."
Aside from the prosecutors resembling the ones in the O.J. Simpson trail, there is a scene where Rev. Wayne tries on a glove and says it doesn't fit, which is a reference to the said O.J. trial and famously quoted "if it doesn't fit, you must acquit"