Meanwhile, Mia and William's team clash with a new foe. While trying to decipher The Monitor’s mission, Oliver returns to Starling City where he encounters familiar faces. Echo Kellum as Curtis Holt and Curtis Holt's Earth-2 doppelgänger.Charlie Barnett as Older John Diggle, Jr./Deathstroke.Willa Holland as Thea Queen and Thea Queen.Audrey Marie Anderson as Lyla Michaels/Harbinger.Katie Cassidy as Laurel Lance/Black Canary and Laurel Lance.LaMonica Garrett as Mar Novu/The Monitor and Mobius/Anti-Monitor.Katherine McNamara as Mia Smoak-Queen/Blackstar/Green Arrow.Juliana Harkavy as Dinah Drake/Black Canary and Dinah Drake.Rick Gonzalez as Rene Ramirez/Wild Dog and Rene Ramirez.Stephen Amell as Oliver Queen/The Hood/Green Arrow/Spectre.In Arrow's final season, Oliver Queen is forced to confront the reality of what it means to be a superhero. In last season's finale (" You Have Saved This City"), in the wake of discovering what his future holds, Oliver must leave his friends and family behind him and will find himself pit up against his most challenging battle yet, one that will leave the multiverse hanging in the balance.
As the Green Arrow, Oliver successfully saved his city with the help of his team including computer-science expert Felicity Smoak, former soldier John Diggle, meta-human Dinah Drake, street-savvy Rene Ramirez, brilliant inventor Curtis Holt, former protégé Roy Harper, and Earth-2 Laurel Lance. He returned home to Star City, bent on righting the wrongs done by his family and fighting injustice.
Synopsis After a violent shipwreck, billionaire playboy Oliver Queen, was missing and presumed dead for five years before being discovered alive on a remote island in the North China Sea by two men on a fishing boat.