|Season 6, Episode 4|
|Throne of Atlantis||From The Ashes|
PART 3 OF 3: COLLISION COURSE- The Last Children of Krypton team with Lex Luthor to free Pandora from her imprisonment. In so doing they revive the villainous Owlman, who is in turn used as a pawn by Eobard Thawne and Hila to destroy the JLA.
- Melissa Benoist as Kara Danvers/Supergirl
- Chyler Leigh as Alex Danvers
- Katie McGrath as Lena Luthor
- Tyler Hoechlin as Clark Kent/Superman
- Olivia Wilde as Susannah Russo (credit only)
- Jenna Dewan as Lucy Lane (credit only)
- Minka Kelly as Dawn Granger (credit only)
- Claire Holt as Karen Starr/Power Girl
- Michael Rosenbaum as LX-52/President Lex Luthor (Earth-30)
- with Emmy Rossum as Zaora Dru-Zod
- and David Harewood as J'onn J'onzz/Martian Manhunter
Special Guest StarsEdit
- Jon Cryer as Lex Luthor
- Grant Gustin as Barry Allen/The Flash
- Luke Evans as Bruce Wayne/Batman & Thomas Wayne III/Owlman
- Katie Cassidy as Laurel Lance/Black Canary
- with Amber Heard as Mera/Hila
- and Jason Momoa as Arthur Curry/Aquaman & Lobo
- Matt Letscher as Eobard Thawne
- Marie Averopoulos as Diana, Princess of Themyscira/Wonder Woman
- Laura Vandervoort as Indigo
- Shannyn Sossman as Pandora
- Antagonists: Eobard Thawne, Thomas Wayne III, Lex Luthor, Hila
- Susannah, Lucy, and Dawn do not appear in this episode.
- This episode takes place on January 23, 2021.
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