Gustin has signed on to appear in three episodes of the hit CW show: eight, nine, and twenty, the third episode will serve as a backdoor pilot to next season's Flash television series. Arrow co-creators Greg Berlanti, Andrew Kreisberg as well as director David Nutter are behind the potential spinoff. Berlanti, Kreisberg and DC Entertainment's Geoff Johns -- a writer/consultant on Arrow -- will pen all three Barry Allen episodes for Warner Bros. Television; Nutter will direct.
"When we first meet Barry Allen, he's just a forensic scientist … an ordinary man," Kreisberg said back in July when the project was first announced. The character, like Amell's vigilante, will be grounded in reality and as realistic as possible. The first two episodes will see the character in Starling City, with the 20th providing a window to see Barry in The Flash's world.
One of the things that grounds The CW's Arrow is the fact that the series isn't about individuals with superpowers, but introducing the Flash violates the series' premise of taking place in a real world. Producers noted that they will handle the introduction of Barry's superspeed in a way that isn't commonplace. "There will be extraordinary events in the world and the characters will react in the same way," Kreisberg noted.
Barry Allen is a Central City assistant police forensic investigator who arrives in Starling City to look into a series of unexplained robberies that may have a connection to a tragedy in his past. A comic book fan boy, Barry is obsessed with the "Vigilanti" and unaware that working with Oliver and Felicity will lead him right into the dangerous world of the crime fighting.
"Part of the fun for the audience … is to see how we view our Arrow take on the Flash legacy," Kreisberg said. "Some of it will feel very familiar to DC Comics, some of it hopefully will feel different, fresh and exciting. The same way we approached Arrow is the same way we're approaching Barry."
Arrow returns to the CW on October 29th.
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