Spoilers ahead for Episode 9 of The Flash Season 9, called “It’s My Party and I’ll Die If I Want To.”
The episodes are counting down until The Flash ends its nine-season run on The CW, and the latest threw Barry a birthday party that was an excellent excuse to bring in some familiar faces from across the Arrowverse. The most notable, of course, was former Arrow star Stephen Amell, whose Green Arrow is responsible for launching the entire superhero universe that spanned six series at its peak after the “Crisis on Infinite Earths” crossover. The Flash had to revisit that Crisis to bring back the late Oliver Queen, and in the process addressed an issue of mine with the Arrow series finale that has been lingering since that show ended in 2020.
