Development In January 2015,
The CW President
Mark Pedowitz announced
Arrow renewal for a fourth season at the 2014
Television Critics Association event. Series creator
Marc Guggenheim returned as showrunner, while co-executive producer and writer
Wendy Mericle was promoted to co-showrunner.
Writing The season introduces two major changes to the series: Starling City being renamed as
Star City, and
Oliver Queen returning to vigilantism as the "
Green Arrow", the same vigilante identity he uses in the comics. Regarding the latter, speaking before the season premiere, Wendy Mericle said, "It felt right for the natural evolution of Oliver's character to become what we know in the comics". Teasing
Damien Darhk, the season's big bad, series co-creator
Andrew Kreisberg said, "We've always referred to
Ra's al Ghul [Matt Nable] as the worst thing that can happen to Oliver and his team, but when you see the first two episodes of season four, you'll quickly realize that Ra's was in the nursery compared to what Damien's got in store for everybody". He called Darhk a "different" villain than the previous ones, saying "He's a bit more colorful, a bit more fun and is very dangerous and commanding and leads an army of followers who would die at his command. But he's funnier, more charming and fits in with our whole shading this year where we've made things lighter." The season also sees many of the characters taking on vigilante codenames: Spartan (
John Diggle), Speedy (
Thea Queen), and Overwatch (
Felicity Smoak). Guggenheim originally hoped to bring
Helena Bertinelli / Huntress (
Jessica De Gouw) back after failing to include her
last season, describing that the crew had a "kick-ass" idea for a Huntress episode.
Casting Main cast members
Stephen Amell,
Katie Cassidy,
David Ramsey,
Willa Holland,
Emily Bett Rickards,
John Barrowman and
Paul Blackthorne return from previous seasons as Oliver Queen,
Laurel Lance / Black Canary, John Diggle / Spartan, Thea Queen / Speedy, and
Quentin Lance. This was initially Cassidy's final season as a regular, due to her character dying in the episode "
Eleven-Fifty-Nine"; she would later return as a guest star in season 5, and be reinstated as a regular starting with season 6.
Colton Haynes, who portrayed
Roy Harper / Arsenal as a regular in seasons two and three, returned in a guest capacity.
Neal McDonough recurs as Damien Darhk.
Design The Green Arrow costume was designed by Maya Mani. It is more armored than the Arrow costume, eschews sleeves and features shoulder pads and archer's gauntlets, in addition to having many pockets and holsters. Diggle's Spartan costume consists of a steel gray jacket-and-pants combination along with a face-protecting helmet. In response to criticism of the Spartan helmet resembling that worn by the
Marvel Comics character
Magneto, Ramsey said, "I know there's a lot of criticism that it looks like the Magneto helmet. But by the time you see Diggle in action – we also get into what the helmet can do – you won't be thinking of the
X-Men at all."
Filming Filming for the season began in mid-July 2015 in
Vancouver,
British Columbia, Canada, and ended in late April 2016.
Arrowverse tie-ins In May 2015, Amell revealed he had had discussions with DC Entertainment to portray Oliver Queen on
Constantine because its title character,
John Constantine is an expert on the Lazarus Pit, a concept used on
Arrow. In August 2015, it was confirmed that
Constantine star
Matt Ryan would appear on
Arrow in the fourth season episode "
Haunted", per a "one-time-only" deal that would involve his character being "brought in to deal with the fallout of the resurrection of
Sara Lance (Caity Lotz) via Ra's al Ghul's Lazarus Pit." As
Arrow and
Constantine were both produced by
Warner Bros. Television, the producers of
Arrow were able to acquire Ryan's original outfits.
John Badham, who was a director on
Constantine, directed "Haunted". Season four includes the second annual crossover with
The Flash: "
Heroes Join Forces", which also serves as the setup for
Legends of Tomorrow. The season also saw the live-action debut of
Vixen with,
Megalyn Echikunwoke reprising her role from the
animated web series of the same name. == Release ==