|Get Your Soul Back|
|Season 6, Episode 15|
|Shatter Me||The Grey|
PART 2 OF 3: A JOURNEY- Kara Danvers travels to the Fortress of Solitude to reconcile her recent actions with her larger idea of herself. Back in National City, Alex Danvers, Susannah Russo, Lena Luthor and James Olsen battle a resurfaced Indigo.
- Melissa Benoist as Kara Danvers/Supergirl
- Chyler Leigh as Alex Danvers
- Katie McGrath as Lena Luthor
- Odette Annable as Reign (Fortress hologram) & Samantha Arias (Illusion)
- Tyler Hoechlin as Jor-El (Fortress hologram)
- Olivia Wilde as Susannah Russo
- Jenna Dewan as Lucy Lane
- Minka Kelly as Dawn Granger
- Claire Holt as Karen Starr (credit only)
- Michael Rosenbaum as LX-52
- with Emmy Rossum as Zaora Dru-Zod
- with Mehcad Brooks as James Olsen/Guardian
- with David Harewood as J'onn J'onzz
Special Guest StarEdit
- Helen Slater as Eliza Danvers
- Emmanuelle Chriqui as Sarah Essen
- Rachel Nichols as Slam Bradley
- Matt Letscher as Eobard Thawne/Reverse-Flash
- Laura Vandervoort as Indigo
- Tamzin Merchant as Lyra Strayd
- Teressa Liane as Mary Louise Fairchild
- Scarlett Byrne as Nora Fairchild
- Lili Reinhart as Aethryr
- with Dianna Agron as Raya Zod-El
- and Troian Bellisario as Mary Seward
- Antagonist: Indigo
- Clark and Karen do not appear in this episode.
- First episode since her introduction in Lines that Karen is absent.
- Sam was last seen in Twilight.
- This episode takes place on March 2, 2021.
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