John Diggle is and ex-soldier. He now works as Oliver's bodyguard and chauffeur.
Diggle: I see you brought your plus one.
Ray: Nice to meet you. Ray Palmer.
Diggle: John Diggle. [whispering into Ray's ear] You hurt her, they'll never find your body. [louder] Nice to meet you!
You know Oliver, somebody once told me that secrets have weight. The more you keep, the harder it is to keep moving.Diggle