Season 2 (Arrow)

The second season of Arrow premiered on October 9, 2013. It will consist of 23 episodes.

Synopsis
One year ago, Oliver Queen was rescued after being stranded on a deserted island for five years. In place of the playboy he was, Oliver returned as a man bent on righting the wrongs of his family and those who had corrupted his city, as a hooded vigilante.

After failing to stop Malcolm Merlyn from destroying the Glades and the death of his best friend Tommy Merlyn, Oliver abandoned his hood out of guilt. However, Oliver is forced to return to save both his family's company and his family, as Starling City has fallen into further ruin since the Undertaking. With allies: John Diggle and Felicity Smoak, Oliver will fight to honor his best friend, as The Arrow, all the while on the run from his former ally: Laurel Lance.

During the flashbacks, Oliver is forced to deal with Dr. Anthony Ivo in his quest to find the Mirakuru, a strength enhancing serum created by the Japanese in World War II, which results in Shado's death but is also being reunited with Sara Lance. The story also focuses on Slade Wilson who becomes injected with the serum, and his transition into the villain named Deathstroke.

In the present day Oliver, Diggle, and Felicity fight various criminals and gangs trying to take advantage of the chaos in the Glade's after the Undertaking. Moira is put on trial for her involvement with Malcolm's Undertaking, while Roy Harper continues to look for the Arrow. Oliver also becomes closer friends with city alderman Sebastian Blood, while being forced to co-run his company with Isabel Rochev. Meanwhile, Moira is aquited of all charges but discovers that Malcolm Merlyn is still alive, and is the true biological father of Thea.

Oliver also works with Sara, still alive in the present and now a vigilantie also named "Canary", while he also encounters Brother Blood, unaware that he is Sebastian, who has been injecting people with Mirakuru also. After believing him to be killed, though Sebastian deceived Oliver by using a double, Oliver discovers that Slade Wilson is still alive in the present and is the true mastermind behind the Mirakuru plot, which is all part of a complex vendetta Slade has against Oliver for events that occured on the island, mainly Shado's death. Isabel also takes control of Ollie's company and reveals to him that she is working for Slade.

Main cast

 * Stephen Amell as Oliver Queen/The Arrow
 * Katie Cassidy as Laurel Lance
 * David Ramsey as John Diggle
 * Willa Holland as Thea Queen
 * Emily Bett Rickards as Felicity Smoak
 * Colton Haynes as Roy Harper
 * Manu Bennett as Slade Wilson/Deathstroke
 * Susanna Thompson as Moira Queen
 * Paul Blackthorne as Quentin Lance

Recurring cast

 * Caity Lotz as Sara Lance/The Canary
 * Kevin Alejandro as Sebastian Blood/Brother Blood
 * Celina Jade as Shado
 * Dylan Neal as Anthony Ivo
 * Dylan Bruce as Adam Donner
 * Bex Taylor-Klaus as Sin
 * Jesse Hutch as Officer Daily
 * Summer Glau as Isabel Rochev/Ravager
 * David Nykl as Anatoli Knyazev
 * Jimmy Jean-Louis as "The Captain"
 * Colin Salmon as Walter Steele
 * Cynthia Addai-Robinson as Amanda Waller
 * Michael Jai White as Ben Turner/Bronze Tiger
 * Audrey Marie Anderson as Lyla Michaels
 * Michael Rowe as Floyd Lawton/Deadshot
 * Grant Gustin as Barry Allen
 * John Barrowman as Malcolm Merlyn/The Dark Archer
 * Sean Maher as Mark Scheffer/Shrapnel
 * Alex Kingston as Dinah Lance