After covering from a near-fatal drug overdose, Oliver begins hallucinating people from his past. Believing he's a liability, Oliver gives the information he has on Cyrus Gold to Quentin... which results in the deaths of several police officers. Meanwhile, Brother Blood captures Roy and uses him as a test subject for his new serum. In the past on the island, Ivo gives Oliver an impossible choice to make.
Quest roles:
Colin Donnell(Tommy Merlyn (archive footage)), Grant Gustin(Barry Allen / The Flash), Caity Lotz(Sara Lance), Bex Taylor-Klaus(Sin), Celina Jade(Shado (archive footage)), Roger Cross(Detective Lucas Hilton (archive footage)), Olivia Cheng(Linda Park), Kevin Alejandro(Sebastian Blood / Brother Blood), Danny Dworkis(The Technician), Jesse Hutch(Officer Daily), Dylan Neal(Dr. Anthony Ivo), Ron Selmour(The Butcher), Graham Shiels(Cyrus Gold), Jennifer Cheon(Uni)