The CW Shows Part of the Arrowverse Arrow The Flash Supergirl Charlie Hunnam once turned down the role of Green Arrow, but the upcoming DCU reboot is the perfect opportunity to make this casting ...

The television universe brought together such characters as the Green Arrow, the Flash, Supergirl, Firestorm, Killer Frost, the Atom, White Canary, Steel, Mister Terrific, and more in one epic ...

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The Flash 133 episodes Barry asks the Green Arrow for help when aliens attack Central City, but when they realise that won't be enough, they bring the Legends and Supergirl in on the battle.