|Season 4, Episode 8|
|Under The Blood Red Sun||Supergirl No More|
Aftermath is the eighth episode of Supergirl Season 4 and the 72nd episode overall. It is the eighth and final part of the 8-part WAR OF THE SUPERMEN arc.
RIGHTEOUS ANGER- Kal-El challenges Dru-Zod and Ursa. As Kara Danvers, Lucy Lane, and Lois Lane pursues a fleeing Sam Lane, Alex Danvers works to find Astra In-Ze and James Olsen rehabs Karen Starr. Lena Luthor searches for Maggie Danvers.
- Melissa Benoist as Kara Danvers/Supergirl
- Chyler Leigh as Alex Danvers
- Jeremy Jordan as Winslow Schott
- Katie McGrath as Lena Luthor
- Tyler Hoechlin as Kal-El
- Zachary Quinto as General Dru-Zod
- Odette Annable as Reign
- Jenna Dewan as Lucy Lane
- Floriana Lima as Maggie Danvers
- with Claire Holt as Karen Starr/Power Girl
- and Mehcad Brooks as James Olsen/Guardian
Special Guest StarsEdit
- Sarah Shahi as Ursa
- Erica Durance as Alura Zor-L
- Michael Rosenbaum as Lex Luthor (Earth-30)
- and Helen Slater as Eliza Danvers
- Billy Zane as Lex Luthor
- Amy Acker as Brainiac
- Brenda Strong as Lillian Luthor
- Lauren German as President Veronica Banks
- Glenn Morshower as General Sam Lane
- Minka Kelly as Lois Lane
- Emma Tremblay as Ruby Arias
- with Katheryn Winnick as D.I.S.C.O.R.D.
- and Dianna Agron as Major Raya Zod-El
- Antagonists: Kara Danvers, Dru-Zod, Ursa, Sam Lane, Lillian Luthor, Lex Luthor
- This is the fourth midseason premiere.
- This is the 4th midseason premiere to feature Kara and Alex
- This is the 3rd midseason premiere to feature James, Maggie, and Astra.
- This is the 2nd midseason premiere to feature Zod, Lena, Karen, and Clark.
- This is the 1st midseason premiere to feature Lucy.
- First appearance of Krypton-2's Alura.
- First episode since Falling where Kara is an antagonist.