Guest Stars Caity Lotz as Sara Lance Dylan Bruce as Adam Donner Chelah Horsdal as Kate Spencer Jessica De Gouw as Huntress Jeffrey Nordling as Frank Bertinelli Sean Rogerson as Peter Artine Brown as Hendrick Von Arnim Lochlyn Munro as Captain Stein Co Starring David Nykl as Anatoly Knyazev Marrett Green as Merritt Davis Bombyx Du Murier as SCPD Officer Sarah Dugdale as Becky Jorge Vargas as Junkie Gavin Cooke as Pirate Daylin Willis as College Kid Mittita Barber as Screaming Woman Jesse James Pierce as Obnoxious Clubber