According to VancouverFilm.Net, the seventh annual 'Arrowverse' crossover event "The Flash": Armageddon", launches Season Eight of "The Flash", starting November 16, 2021 on The CW:
"...a powerful alien threat arrives on Earth under mysterious circumstances as 'Barry', 'Iris' and the rest of 'Team Flash' are pushed to their limits in a desperate battle to save the world.
"But with time running out and the fate of humanity at stake, 'Flash' and his companions will also need to enlist the help of some old friends if the forces of good are to prevail..."
Cast includes Tom Cavanagh as 'Professor Eobard Thawne'/'Reverse-Flash' and 'Dr. Harrison Wells', Osric Chau as 'Dr. Ryan Choi', Kayla Compton as 'Allegra Garcia', Jon Cor as 'Mark Blaine'/'Chillblaine', Tony Curran as 'Despero', Grant Gustin as 'Barry Allen'/'The Flash', Stephanie Izsak as 'Officer Daisy Korber', Chyler Leigh as 'Dr. Alex Danvers'/'Sentinel', Javicia Leslie as 'Ryan Wilder'/'Batwoman', Neal McDonough as 'Damien Darhk', Katherine McNamara as 'Mia Queen'/'Green Arrow', Brandon McKnight as 'Chester P. Runk', Carmen Moore as 'Kristen Kramer', Danielle Nicolet as 'Defense Attorney Cecile Horton', Danielle Panabaker as 'Dr. Caitlin Snow', Candice Patton as 'Iris West-Allen', Brandon Routh as 'Dr. Ray Palmer'/'The Atom' and Cress Williams as 'Jefferson Pierce'/'Black Lightning'.
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