- Actor Allusion: This is not the first time Jon Bernthal has apologized to a man moments before shooting and killing him.
- Fake American: Simon Pegg (British) as Hecky Nash.
- Follow the Leader: While Mob City goes for a Noir feel and takes place 20 years after on the opposite coast, it is impossible to not make comparisons with HBO's Boardwalk Empire. Its debut two weeks after the end of Boardwalk's fourth season might be an attempt to gather some of its viewers... and the scene in "Red Light" when Siegel is saying that Atlantic City is History and "this" (meaning Las Vegas) is "something different" could be interpreted as a commentary from the writers asking those viewers to keep the two shows apart.
Trivia / Mob City