Season 5 (Arrow)

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. He returned home to Star City, bent on righting the wrongs done by his family and fighting injustice. As the Green Arrow, he protects his city with the help of former soldier John Diggle, computer-science expert Felicity Smoak, his vigilante-trained sister Thea Queen, former police captain Quentin Lance, and brilliant inventor Curtis Holt. But sinister players with a connection to Oliver's past will push the team to its breaking point, threatening everything Oliver's worked for and his legacy as the Green Arrow.

Main cast

 * Stephen Amell as Oliver Queen/The Hood/Green Arrow
 * David Ramsey as John Diggle/Spartan
 * Willa Holland as Thea Queen/Speedy
 * Emily Bett Rickards as Felicity Smoak/Overwatch
 * Echo Kellum as Curtis Holt/Mr. Terrific
 * Josh Segarra as Adrian Chase/Prometheus
 * Michael Dorn as Prometheus (voice; uncredited)
 * Paul Blackthorne as Quentin Lance

Recurring cast

 * Adrian Holmes as Frank Pike
 * Rick Gonzalez as Rene Ramirez/Wild Dog
 * Chad L. Coleman as Tobias Church
 * Tyler Ritter as Billy Malone
 * David Nykl as Anatoly Knyazev
 * Mike Dopud as Viktor
 * Joe Dinicol as Rory Regan/Ragman
 * Madison McLaughlin as Evelyn Sharp/Artemis
 * Audrey Marie Anderson as Lyla Michaels
 * Carly Pope as Susan Williams
 * Dolph Lundgren as Konstantin Kovar
 * David Meunier as Ishmael Gregor
 * Grant Gustin as Barry Allen/The Flash
 * Juliana Harkavy as Dinah Drake/Black Canary
 * Lexa Doig as Talia al Ghul
 * Kacey Rohl as Alena/Kojo Sledgehammer
 * Manu Bennett as Slade Wilson/Deathstroke
 * Katrina Law as Nyssa al Ghul

Universe regulars

 * John Barrowman as Malcolm Merlyn/Dark Archer
 * Katie Cassidy as Laurel Lance and Laurel Lance/Black Siren

Trivia

 * This is the final season of Arrow to feature flashbacks regarding the 5 years Oliver was away from Starling City (later known as Star City).