Black Siren returns to give Chase help; Felicity plans a birthday party for Oliver; Lance is angry with Rene for missing the custody hearing about his daughter.
Quest roles:
Katie Cassidy(Laurel Lance), Manu Bennett(Slade Wilson (archive footage)), John Barrowman(Malcolm Merlyn / Narrator (voice)), Keri Adams(Bethany Snow), Katrina Law(Nyssa al Ghul), Madison Mclaughlin(Evelyn Sharp), Dolph Lundgren(Konstantin Kovar), Taras Kostyuk(Gennady), Byron Mann(Yao Fei (archive footage)), Marc-Anthony Massiah(Agent Kosinski), Ishan Morris(A.R.G.U.S. Guard #1), Jack Moore(William), AJ Crivello-Jones(A.R.G.U.S. Guard #2)