One of the thing that makes me love this series is the feeling that we are watching a fresh take to superhero comics; for example the main weakness of superhero comics are the fancy costumes and POI dispense of them from the start (if you ignore Reese 'suit').
So, what we have here?
Reese plus Finch = Batman
The Machine = a nicer OMAC Brother Eye
Fusco plus Carter = Gordon
Elias = Kingpin (I know, wrong universe)
Zoe = Catwoman
Root = the Oracle gone dark side
Scarface = Deatstroke? It is just an Elias enchman but he survived more encounters with Reese than any other goons around.
P.S. If the next year they will start a Los Angeles spin-off with an undercover super powered alien in a few years they will render DC & Marvel irrelevant.