Toward the end of the episode Don Falcone says to Gordon: "In bocca al lupo". This is an Italian idiom ( it literally translate in "In to the mouth of a wolf" ) meaning you are wishing good luck to the person you are speaking to.
Donal Logue was initially rumored to play the role of Detective James Gordon before being officially cast as Detective Harvey Bullock.
Ben McKenzie suffered an accident on set while shooting a fight scene, in which he slammed his head on a concrete pillar.
Features the very first live-action portrayal of Det. Harvey Bullock.