Season 8 (Arrow)

was renewed for an eighth and final season on January 31, 2019. It premiered on October 15, 2019, on The CW and concluded on January 28, 2020. The season consisted of 10 total episodes.

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. He returned home to Star City, bent on righting the wrongs done by his family and fighting injustice. 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. In last season's finale, 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. In Arrow's final season, Oliver Queen is forced to confront the reality of what it means to be a superhero.

Cast

 * -|Pre-Crisis Cast=

Main Cast

 * Stephen Amell as Green Arrow/The Hood/Spectre (Oliver Queen)
 * David Ramsey as Spartan (John Diggle)
 * Rick Gonzalez as Wild Dog (Rene Ramirez)
 * Juliana Harkavy as Black Canary (Dinah Drake)
 * Katherine McNamara as Blackstar/Green Arrow (Mia Smoak)
 * Ben Lewis as William Clayton
 * Joseph David-Jones as Connor Hawke
 * LaMonica Garrett as The Monitor (Mar Novu) / Anti-Monitor (Mobius) *
 * Katie Cassidy as Black Canary (Laurel Lance) / Laurel Lance (Earth-1) *

Recurring Cast

 * Colin Donnell as Dark Archer (Tommy Merlyn)
 * Susanna Thompson as Moira Queen
 * Audrey Marie Anderson as Harbinger (Lyla Michaels)
 * Willa Holland as Speedy (Thea Queen)
 * David Nykl as Anatoly Knyazev
 * Andrea Sixtos as Zoe Ramirez
 * Charlie Barnett as Deathstroke (John Diggle)
 * Echo Kellum as Curtis Holt
 * Colton Haynes as Arsenal (Roy Harper)
 * Paul Blackthorne as Quentin Lance
 * Grant Gustin as The Flash (Barry Allen)
 * Melissa Benoist as Supergirl (Kara Danvers)
 * Caity Lotz as White Canary (Sara Lance)
 * Lexa Doig as Talia al Ghul

In-Universe Guest Stars

 * Jon Cryer as Lex Luthor
 * Ezra Miller as Barry Allen (Earth-1: Post-Crisis)
 * Grant Gustin as The Flash (Barry Allen)
 * Caity Lotz as White Canary (Sara Lance)
 * Brandon Routh as Atom (Ray Palmer)
 * Tyler Hoechlin as Superman (Clark Kent) / Superman (John Deegan)
 * David Harewood as Martian Manhunter (J'onn J'onzz)
 * Elizabeth Tulloch as Lois Lane
 * Ruby Rose as Batwoman (Kate Kane)
 * Melissa Benoist as Supergirl (Kara Danvers)
 * Osric Chau as Ryan Choi
 * Stephen Lobo as Jim Corrigan


 * -|Post-Crisis Cast=

Main Cast

 * Stephen Amell as Green Arrow/The Hood (Oliver Queen)
 * David Ramsey as Spartan (John Diggle)
 * Rick Gonzales as Wild Dog (Rene Ramirez)
 * Juliana Harkavy as Black Canary (Dinah Drake)
 * Katherine McNamara as Green Arrow (Mia Queen)
 * Ben Lewis as William Clayton
 * Joseph David-Jones as Connor Hawke
 * LaMonica Garrett as The Monitor (Mar Novu) *
 * Katie Cassidy as Black Canary (Laurel Lance) *

Recurring Cast

 * Colin Donnell as Tommy Merlyn
 * Susanna Thompson as Moira Queen
 * Audrey Marie Anderson as Lyla Michaels
 * Willa Holland as Speedy (Thea Queen)
 * David Nykl as Anatoly Knyazev
 * Andrea Sixtos as Zoe Ramirez
 * Charlie Barnett as John Diggle Jr.
 * Echo Kellum as Curtis Holt
 * Colton Haynes as Arsenal (Roy Harper)
 * Paul Blackthorne as Quentin Lance
 * Grant Gustin as Barry Allen
 * Melissa Benoist as Kara Danvers (Kara Zor-El)
 * Caity Lotz as Sara Lance
 * Lexa Doig as Talia al Ghul

Notes:
 * 1) LaMonica Garrett is only credited for his respective episode appearances.
 * 2) Despite being listed among the main cast, Cassidy is credited with "special appearance" billing.