The fake cadaver of Jason Cahill cost $10,000 to make. It was created by the same company that crafts the fake bodies for Nip/Tuck (2003).
Ironically as Sydney and Vaughn move to rekindle their relationship onscreen, in real life Jennifer Garner and Michael Vartan had just split up.
The episode "Nocturne" from the fourth season is dedicated to script supervisor Tricia Goken who died in a car accident.
This episode received the 2005 Emmy nomination for Outstanding Hairstyling For A Series.
The alley scene, purported to take place in Prague, is just north of the Sixth Street bridge near Sixth Street and Willow Street. The Sixth Street bridge can be seen in the background with an added-in wall covering much of the lower bridge support structure.