|From The Ashes|
|Season 6, Episode 5|
|Trinity War||We Will Rise|
Seeing Double is the fifth episode of Supergirl Season 6 and the 105th episode overall. It is the first part of the 3-part REBIRTH story arc.
PART 1 OF 3: REIGN RETURNS- James Olsen makes a triumphant return to National City, but his intentions are anything but pleasant. Kara Danvers and Lena Luthor learn of the survival of Reign. Alex Danvers and Susannah Russo have an important conversation.
- Melissa Benoist as Kara Danvers/Supergirl & Dark Kara
- Chyler Leigh as Alex Danvers
- Katie McGrath as Lena Luthor
- Odette Annable as Reign
- Tyler Hoechlin as Clark Kent/Superman
- Olivia Wilde as Susannah Russo
- Jenna Dewan as Lucy Lane
- Minka Kelly as Dawn Granger
- Claire Holt as Karen Starr/Power Girl
- Michael Rosenbaum as LX-52/President Lex Luthor (Earth-30)
- Emmy Rossum as Zaora Dru-Zod
- with Mehcad Brooks as James Olsen
- and David Harewood as J'onn J'onzz (credit only)
Special Guest Star
- Helen Slater as Eliza Danvers
- Antagonists: Reign, Dark Kara, James Olsen
- J'onn does not appear in this episode.
- This episode takes place on January 29, 2021.