Although Arrow season 9 never happened, Stephen Amell did manage to return to the Arrowverse one more time before its conclusion, making a special appearance in the final season of The Flash - teaming ...

Oliver Queen wearing his green hood and mask on Arrow (2012-2020) - The CW Superhero-themed cinematic universes (and attempts to create them) are a dime a dozen these days, but as is so often the case ...