first off, i'm glad the bodyguard knows who he is. i was hoping thye wouldn't drag that on and on. also, i'm glad they actually kill people with his arrows. it's hard to believe that people wouldn't die. also, CW picked it up for 18 episodes
spoilers
deadshot resides at 1700 broadway, which is dc comics real address.
his bodyguard is named Diggle. andy diggle wrote green arrow year one
judge grell, obviously a shout out to mike grell
ollie's sisters' nickname is speedy, and she has a drug issue.
they also had a father and daughter in Ep. 2 with the last name nocenti. (i assume after ann nocenti)
felicity smoak was the IT employee working for queen industries and helped access the hard drive in the laptop that was shot up. in the comics, smoak is a supporting character of Firestorm.