Detective Quentin Lance (born 1962) is an 51 year old determined police detective, formerly a sergeant (having been demoted in "Year's End"), and is partners with Detective Lucas Hilton. He is the ex-husband of Dinah, and the father of Laurel Lance, and the late Sara Lance. He has sworn to take down Arrow at any means necessary. He even once uses his daughter as bait.
However, this changes after Arrow tells him about Malcolm Merlyn's plan to level the entire Glades. He has finally come to see Arrow is a good person, no longer sees him as a menace to the city, and stops trying to arrest him.