<Table> <Tr> <Td> </Td> <Td> This section consists almost entirely of a plot summary . It should be expanded to provide more balanced coverage that includes real - world context . Please edit the section to focus on discussing the work rather than merely reiterating the plot . (April 2018) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This section consists almost entirely of a plot summary . It should be expanded to provide more balanced coverage that includes real - world context . Please edit the section to focus on discussing the work rather than merely reiterating the plot . (April 2018) (Learn how and when to remove this template message) </Td> </Tr> <Ul> <Li> Stephen Amell as Oliver Queen / Arrow / Green Arrow, a billionaire playboy turned hooded vigilante - hero who is initially known as the "Hood", "Vigilante", and simply "Arrow". He is based on the DC Comics character Green Arrow . He survives on an isolated island for five years after the sinking of his father's yacht . Oliver returns to his home city with a mission--to right the wrongs of his father and save the city from the crime that has grown in his absence . Amell was one of the first actors to audition for the role, and Kreisberg felt that he "hit the target from the outset" and "everyone else just paled in comparison". The actor, who was already in shape from Rent - a-Goalie, did physical fitness training at Tempest Freerunning Academy in Reseda, California . Amell received archery training as well, which included watching a video on how archery has been displayed inaccurately or poorly in television and film before learning the basics of shooting a bow . For Amell, the appeal of portraying Queen was that he saw multiple roles tied to the same character: "There's Queen the casual playboy; Queen the wounded hero; Queen the brooding Hamlet; Queen the lover; Queen the man of action, and so on". in the sixth season finale, Oliver is sent to jail after announcing to Star City that he is the Green Arrow . Amell also portrays Oliver's Earth - X doppelganger, Dark Arrow in the sixth season . </Li> <Li> Katie Cassidy as Laurel Lance / Black Canary / Black Siren, based on the DC Comics character of the same name, an attorney turned vigilante and former girlfriend of Oliver Queen . Like Oliver, Laurel fights for the people of Starling City . In the first season, she works for a non-profit legal office that helps people in need . In the second season, she became assistant district attorney, but in the second half of the third season, she became a vigilante taking her late sister's place as Black Canary . Cassidy said she was drawn to the show by Berlanti, Nutter, Kreisberg, and Guggenheim, whom she called smart, creative, and edgy . Cassidy sees her character as a "caregiver" to her family, which led her to become an attorney . She said, "I think that she's very, very driven, and she has a huge heart (...) she's sensitive . She has really strong morals and values, and she expects everybody to live up to them the way that she does". She dies near the end of the fourth season, leaving Oliver to blame himself . Oliver reveals her identity to the people of Star City to honor her memory . Cassidy makes subsequent guest appearances in flashbacks, a dream sequence, and as Black Siren, her doppelganger from the parallel world of Earth - 2, first introduced on The Flash . Cassidy was promoted back to series regular for the sixth season and appears as the Earth - 2 version of the character . </Li> <Li> Colin Donnell as Tommy Merlyn, Oliver's best friend, who eventually learns of Oliver's secret life as a vigilante . Like Oliver, Tommy has romantic feelings for Laurel . His father is Malcolm Merlyn . Tommy dies saving Laurel at the end of the first season's finale, leaving Oliver and Laurel to cope with his loss . Donnell reprises his role in a hallucination during the second season and in flashbacks in the third season . He also portrayed his Earth - X doppelganger Prometheus in the sixth season . </Li> <Li> David Ramsey as John Diggle / Spartan, Oliver's partner, confidant, and bodyguard, who becomes a vigilante superhero with armor and hi - tech gear . Diggle is ex-military, and works to have Oliver channel his abilities into helping others in the city, and not just taking down the wealthy, corrupt businessmen that worked with Oliver's father . Named after comic book writer Andy Diggle, and created specifically for the show, Diggle was designed to be Oliver's "equal in many respects". Guggenheim further explained that Diggle's mutual abilities are a means of setting him up early in the series as a confidant for Oliver's vigilante persona . In the fourth season, Diggle becomes Spartan, after the events of the third season finale . In the sixth season, Diggle temporarily becomes Green Arrow after Oliver retires from vigilantism, before donning the Spartan mantle again . He later leaves Team Arrow after he loses faith in Oliver's leadership skills and joins A.R.G.U.S. </Li> <Li> Willa Holland as Thea Queen / Speedy, Oliver's younger sister; based on a DC Comics character with similar traits . Thea develops a drug habit early in season one, but gets clean after criminal charges are brought against her for driving while under the influence . In season two, she learns that Malcolm Merlyn is her biological father, and begins training with him at the start of season three . In the third season, Thea learns Oliver's secret and eventually joins his team . In the fourth season, Thea uses Oliver's nickname for her, Speedy, as her hero identity, which is based on the DC Comics character Mia Dearden . In season 5, Thea becomes Oliver's chief of staff as in the Star City mayor's office . After appearing in only a few episodes in the fifth and sixth seasons, Holland exited the series as a regular . Guggenheim stated that the door is always open for Holland to reprise her role as Thea . </Li> <Li> Susanna Thompson as Moira Queen, Oliver and Thea's mother . Moira is revealed to also be part of the secret organization her late husband was involved with, which is making plans to bring down the city as a means of rebuilding it in the image of the organization's leader . She is murdered at the end of season two . Thompson reprises her role as Moira Queen, making two guest appearances, one as a hallucination in the main crossover event, "Invasion!", and in a flashback of the fifth season's finale . </Li> <Li> Paul Blackthorne as Quentin Lance, Laurel and Sara's father, and Starling City police detective . The character is based on the DC Comics character, Larry Lance, who was also a detective, and husband to Dinah Drake Lance and father to Dinah Laurel Lance . Lance blames Oliver for the presumed death of his daughter, Sara, as she was with him on his family yacht when it sank . In season one, Lance is also out to capture the vigilante, who he sees as a menace to the city for the vigilante's willingness to break the law and kill in the pursuit of stopping crime . In season 2, Lance is demoted to beat cop and is now more accepting of the vigilante's actions to the point of teaming up with him when needed . In season 3, Lance is promoted to police captain but can no longer be active in the field due to his heart condition . In season 5, Lance is dismissed from the police but later becomes Star City's deputy mayor . In season 6, after some interactions with his daughter's Earth - 2 doppelganger, Lance becomes a surrogate father to her . Lance dies in the sixth season finale after sacrificing himself to save Laurel's Earth - 2 doppelganger from Ricardo Diaz . Blackthorne will not reprise his role as Lance in the seventh season . </Li> <Li> Emily Bett Rickards as Felicity Smoak, the IT technician at Queen Consolidated who has become part of Oliver's vigilante team assisting them with her expertise in computer science and hacker skills . Like Diggle, Felicity also serves as Oliver's friend and confidante . Rickards was promoted to a series regular for season two, after being a recurring character throughout season one . The character is later given the codename' Overwatch' and begins a romantic relationship with Oliver . They first become engaged early in season 4, but break off their engagement mid-season . They later reconcile early in season 6, and are later married by John Diggle, alongside Barry and Iris . Felicity later becomes a stepmother of Oliver's son, William . </Li> <Li> Colton Haynes as Roy Harper / Arsenal, a character based on the DC Comics character of the same name . Initially a petty thief, Roy was befriended by Thea, and subsequently dated her for a period of time . Roy is fascinated by the hooded vigilante, and eventually becomes his protégé . Haynes was moved to series regular status at the beginning of season two, following his recurring appearance in the first season . Haynes left the series at the end of season three after his contract ended, and later appears as a guest star in the fourth and sixth seasons . He later attributed his departure from the series to his mental and physical health at that time . Haynes is set to return as a regular for the show's seventh season . </Li> <Li> Manu Bennett as Slade Wilson / Deathstroke, a mercenary and international terrorist . He is based on the DC Comics character of the same name . Slade is an ASIS agent who teamed up with Oliver during his time on the island . In season two, Slade arrives in Starling City to kill Oliver and his family to avenge events that occurred on the island . Bennett was initially cast as a recurring character for season one, before receiving series regular status during season two . Slade returns at the end of season five to help Oliver free his friends from Adrian Chase . He again returns in the early episodes of season six . </Li> <Li> John Barrowman as Malcolm Merlyn / Dark Archer, a wealthy businessman who is the father of Tommy Merlyn and Thea Queen . He serves as Oliver Queen's nemesis . Fueled by his sorrow and anger at the murder of his wife, Rebecca during a mugging in the crime - infested area of Starling City called "the Glades", Malcolm left his then eight - year - old son Tommy, and departed Starling City to "forge his pain and anger into something more". For two years, he was trained in Nanda Parbat by Al - Owal of the League of Assassins . Merlyn took the name "The Magician" (Arabic: الساحر Al Sa - Her). He was the first person to receive permission from Ra's al Ghul to leave the organization, on the condition that he obey the League's codes . Upon returning to Starling City, Malcolm forms an organization called the Tempest and plots to completely destroy the Glades . Events eventually lead to Merlyn leading the League of Assassins and taking on the mantel of "Ra's al Ghul". Malcolm sabotaged Oliver's family yacht, and is thus responsible for Robert Queen's death and indirectly the creation of Oliver's and Sara Lance's vigilante alter egos . Malcolm is apparently killed by Oliver in the first - season finale, but his plan to destroy the Glades still succeeds . He is based on the DC Comics character Merlyn . After being a recurring guest star for the first two seasons, Barrowman became a series regular in season three . He later returns at the end of season five to help Oliver free Thea and the rest of Team Arrow from Adrian Chase, and sacrifices himself to help Thea and her friends escape . </Li> <Li> Echo Kellum as Curtis Holt / Mister Terrific, based on the DC Comics character of the same name . Holt is a technological savant, inventor and medal - winning Olympic decathlete, who works with Felicity at Palmer Technologies . He helps her rescue Ray Palmer from Damien Darhk . Kellum was upgraded to series regular in the fifth season . </Li> <Li> Josh Segarra as Adrian Chase / Prometheus, based on the DC Comics characters Adrian Chase and Prometheus . Chase is the new Star City district attorney who helps Oliver Queen as mayor clean up the streets through the legal system . As Prometheus, he is a ruthless hooded archer who kills, and has a grudge against the Green Arrow and is aware of his identity . It is later revealed that Chase's given name is Simon Morrison . He commits suicide at the end of season five to kill Oliver's friends on Lian Yu . Segarra made a guest appearance in the sixth season as a hallucination of Oliver . </Li> <Li> Rick Gonzalez as Rene Ramirez / Wild Dog: A dishonorably discharged marine who has an estranged daughter . His ex-wife is deceased . He left Team Arrow after being kicked off by Oliver . He is based on the DC Comics character of the same name . </Li> <Li> Juliana Harkavy as Dinah Drake / Black Canary: She was an undercover detective in Central City and was there the night of the S.T.A.R. Labs particle accelerator malfunction and gained sonic screaming as a result . She later joins Oliver's team . Dinah leaves Team Arrow after some trust issues with Oliver . Based on the DC Comics character of the same name . </Li> </Ul> <Li> Stephen Amell as Oliver Queen / Arrow / Green Arrow, a billionaire playboy turned hooded vigilante - hero who is initially known as the "Hood", "Vigilante", and simply "Arrow". He is based on the DC Comics character Green Arrow . He survives on an isolated island for five years after the sinking of his father's yacht . Oliver returns to his home city with a mission--to right the wrongs of his father and save the city from the crime that has grown in his absence . Amell was one of the first actors to audition for the role, and Kreisberg felt that he "hit the target from the outset" and "everyone else just paled in comparison". The actor, who was already in shape from Rent - a-Goalie, did physical fitness training at Tempest Freerunning Academy in Reseda, California . Amell received archery training as well, which included watching a video on how archery has been displayed inaccurately or poorly in television and film before learning the basics of shooting a bow . For Amell, the appeal of portraying Queen was that he saw multiple roles tied to the same character: "There's Queen the casual playboy; Queen the wounded hero; Queen the brooding Hamlet; Queen the lover; Queen the man of action, and so on". in the sixth season finale, Oliver is sent to jail after announcing to Star City that he is the Green Arrow . Amell also portrays Oliver's Earth - X doppelganger, Dark Arrow in the sixth season . </Li>

How many season of arrow are on netflix