Felicity learns something new about Oliver that shocks her. Meanwhile, Diggle asks Curtis to go undercover for ARGUS. Dinah works with an unlikely ally.
Quest roles:
John DeSantis(Reaper Tattoo), Brendan Fletcher(Stanley Dover), Tim Howe(Dunbar), Kirk Acevedo(Ricardo Diaz), Keri Adams(Bethany Snow), Miranda Edwards(Silencer), David Stuart(Deputy Director Bell), Jason E. Kelley(Dr. Jarrett Parker), Lexa Doig(Talia al Ghul), David Nykl(Anatoly Knyazev), Josh Blacker(Magee), Emmanuel Addo(Guard #1), Yanik Ethier(Javelin), Hani Mefti(Bernard)