The series were developed by Greg Berlanti, Marc Guggenheim, Andrew Kreisberg, Geoff Johns, Ali Adler, Phil Klemmer, Salim Akil, and Caroline Dries.

The franchise has been successful, creating a large fandom around the world, and has received positive reviews; critics have praised the themes, acting, action sequences, direction and character development.

[33] The series had previously been in development at Fox, at which point Berlanti had stated Black Lightning would not crossover with his other DC Comics television properties on The CW, nor would it exist in the Arrowverse.

[36] In July 2018, it was revealed that the CW was developing a script for a potential series centered on Batwoman, intending to launch it after the character debuted in the "Elseworlds" crossover event.

[44] Discussing a potential Black Lightning crossover with the Arrowverse in July 2019, Cress Williams revealed that "there's been lots of talk [...] nothing official, but at this point, I wouldn't be surprised.

[48] In September 2019, it was reported that The CW was developing a female led spin-off series with Katherine McNamara, Katie Cassidy and Juliana Harkavy as the leads.

[55] A backdoor pilot for a potential spinoff based on Painkiller was in development, directed by Salim Akil, and aired as the seventh episode of the fourth season of Black Lightning with Jordan Calloway reprising his role from the show.

[66][67] On August 1, 2022, it was announced that The Flash would be concluding with its upcoming ninth season,[68] which also acted as the conclusion of the Arrowverse, due to Superman & Lois having been confirmed to take place in an adjacent universe.

[77][78][79] However, Matt Webb Mitovich of TVLine felt that with the inclusion of Stargirl in the trailer, which exists on a parallel earth to the Arrowverse, the name was perhaps a way to discuss all of the superhero series airing on network at the time.

Mitovich also pointed out the term had been used a year prior in a similar trailer, which had featured the Arrowverse series plus Black Lightning, which was not part of the universe at that time.

Upon his return to Starling City, Oliver rekindles his relationships and spends his nights hunting down wealthy criminals as a hooded vigilante known as the Green Arrow.

[113][114] High school principal Jefferson Pierce, who retired from his superhero persona Black Lightning nine years ago after seeing the effects it had on his family, is forced to become a vigilante again when the rise of the local gang called The 100 led by Tobias Whale leads to increased crime and corruption in his community of Freeland.

"[200] Barrowman signed a similar deal to Miller in July 2016, allowing him to continue being a series regular on Arrow as well as The Flash and Legends of Tomorrow,[201] followed by Cassidy for her character Laurel Lance.

The Batwoman issue, released on April 5, was written by show writers Natalie Abrams and Kelly Larson, and actor Camrus Johnson, with art by Clayton Henry.

The Superman & Lois issue, released on April 19, was written by show writers Adam Mallinger, Jai Jamison, and Andrew Wong, with art by Tom Grummett and Norm Rapmund.

The Legends of Tomorrow issue, released on May 3, was written by show writers Lauren Fields and Daniel Park, with art by Paul Pelletier and Andrew Hennessy.

[251] In December 2020, David Ramsey was revealed to be reprising his role of John Diggle on Superman & Lois, Supergirl, The Flash, and Batwoman,[252] as well as on Legends of Tomorrow as "a historical Western character".

Finally, Diggle heads to National City to help Kelly Olsen with her decision to become the new Guardian, telling her he had an opportunity to become a special kind of hero and turned it down.

[281] Although Superman & Lois was initially conceived as a spin-off of Supergirl with several Arrowverse cast members reprising their roles, the series' second-season finale established it as set in an adjacent universe.

Dark Archer, Arrow vs. Ra's al Ghul, Flash vs. Captain Cold and Heat Wave, which is interrupted by Reverse-Flash, until Firestorm intervenes and the Atom makes an appearance at the end.

[285][286] In January 2018, The CW released the promo "Suit Up", featuring the various heroes putting on their costumes in order to promote the return of Arrow, The Flash, Legends of Tomorrow, and Supergirl from their first mid-season break, as well as the premiere of Black Lightning.

"[414] With the premiere of Legends of Tomorrow, Screen Rant's Alice Walker discussed how the series "has hurt Arrow and The Flash", noting that the latter required minimal setup when it was spun-off from the former and had an element of mystery surrounding its quality with "a "wait and see" attitude" from audiences, while Legends was instead met with much excitement long before its release leading to each piece of news concerning it being "publicized and met with fanfare – to the detriment of the other shows involved."

Walker felt that audiences knowing which characters would appear in Legends, and how, took "the thrill out of the story" of the other series as such information spoiled some of their upcoming plot twists, including the resurrection of Sara Lance or the fact that Ray Palmer "could never really pose a threat to Oliver [Queen] and Felicity [Smoak]'s relationship, or run Palmer Technologies long term, since it was widely known that he would be a huge part of Legends."

Additionally, the annual Arrow / The Flash crossover suffered from also trying to set up Legends, which was "too much to ask from the already crowded storylines and ended up feeling like an exercise in synchronicity, with producers planting more seeds than they could reap.

Walker stated that the premiere of Legends "means that Arrow and The Flash can finally stop dedicating so much time and plot to laying the groundwork for the spin-off, and start focusing on the fundamentals of their own shows again.

The novel takes place in an alternate timeline where the show's "Flashpoint" event never occurred, and The Flash must fight a villain known as Hocus Pocus who can control the minds and actions of people.

[439] In May 2018, Titan Books and Aires released a guidebook similar to Oliver Queen's Dossier, but for its sister series, The Flash, from the perspective of Cisco Ramon.

The miniseries features Emily Bett Rickards, Colton Haynes and Paul Blackthorne reprising their roles of Felicity Smoak, Roy Harper and Quentin Lance, respectively.

The series, presented by Microsoft Surface, features Hartley Sawyer, Danielle Panabaker, and Candice Patton as Ralph Dibny, Cailtin Snow, and Iris West respectively.

Narrated by Victor Garber (who portrays Martin Stein / Firestorm in the parent series), the special sees Diskin reprising his role, alongside Ernie Hudson as Santa Claus, Chris Kattan as a Christmas elf named Sprinkles, Kimiko Glenn as Tweebo, Yvette Nicole Brown as Turbo, and Keith Ferguson as Fleabo.