In the final scene, as the protagonists drive off, the license plate of the car is 2GAT123 - possibly the most famous and ubiquitous Hollywood prop license plate, which has appeared in multiple commercials, TV shows, and in movies such as Beverly Hills Cop 2 and L.A. Story - just to name a few.
The town set used at the end of the episode is also used on Pretty Little Liars (2010) as the town of Rosewood and Gilmore Girls (2000) as the town of Stars Hollow. Bryce Johnson has also guest starred on both of these shows.
Red-haired actress: Michelle Lawrence (the victim, in flashbacks).