Hawaii Five-0 brings on Katrina Law as a series regular

TVLine

The Arrow vet is joining Season 10 of the CBS drama as Quinn Liu, described as "a former Staff Sergeant with Army CID who was recently demoted for insubordination. After an explosive collision with Five-0 during a case involving veterans, Quinn becomes a loyal ally to the team. Sharp-tongued in several languages, she has a deep understanding of military culture, a mysterious past and a deft ability to match wits with McGarrett."