What fictional universe is aired on the CW for The Flash?
Arrowverse The Arrowverse is a shared fictional universe that is centered on television series airing on The CW, developed by Greg Berlanti, Marc Guggenheim, Andrew Kreisberg, Phil Klemmer, and Geoff Johns, based on characters appearing in publications by DC Comics. The shared universe, much like the DC Universe in comic books or the cinematic DC Extended Universe, was established by crossing over common plot elements, settings, cast, and characters. The Arrowverse stars Stephen Amell as Oliver Queen / Green Arrow, Grant Gustin as Barry Allen / Flash, Megalyn Echikunwoke as Mari Jiwe McCabe / Vixen, with an ensemble cast leading "Legends of Tomorrow", including Arthur Darvill as Rip Hunter, Caity Lotz as Sara Lance / White Canary, Brandon Routh as Ray Palmer / Atom, Dominic Purcell as Mick Rory / Heat Wave, with Victor Garber and Franz Drameh as Martin Stein & Jefferson "Jax" Jackson / Firestorm. Russell Tovey stars as Ray Terrill / The Ray.
Sara Lance Sara Lance, also known as the White Canary, is a fictional character in the television series "Arrow", which is based on the DC Comics superhero Green Arrow. The character was created specifically for television by Greg Berlanti, Marc Guggenheim and Andrew Kreisberg, but incorporates character and plot elements of the Black Canary, a DC Comics superhero. Originally portrayed by Jacqueline MacInnes Wood in "Arrow"'s pilot, she has been portrayed by Caity Lotz since the second season. She initially fights in "Arrow" under the moniker of "The Canary," translated from her Arabic League of Assassins name "Ta-er al-Sahfer" (Yellow Bird), and later adopts the codename White Canary on the "Arrow" spin-off "Legends of Tomorrow".