|Supergirl, Batwoman, and the Birds of Prey|
|Season 4, Episode 16 (78)|
|Supercousins||I Spit On Your Grave|
SUPERGIRL DISCOVERS BATWOMAN'S IDENTITY- After finally engaging the vigilante known as Batwoman in combat, Kara is stunned when she discovers Batwoman is Kate. When Laurel comes to the DEO requesting help in defeating Livewire, Kara and Alex are all too happy to assist their old teammates.
- Melissa Benoist as Kara Danvers/Supergirl
- Chyler Leigh as Alex Danvers
- Jeremy Jordan as Winslow Schott
- Katie McGrath as Lena Luthor
- Zachary Quinto as General Dru-Zod (credit only)
- Tyler Hoechlin as Kal-El (credit only)
- Odette Annable as Reign
- Jenna Dewan as Lucy Lane
- with Claire Holt as Karen Starr
- and David Harewood as J'onn J'onzz
Special Guest StarsEdit
- Antagonist: Livewire
- Kal and Zod do not appear in this episode. This is the only episode this season to not feature all main characters.
- Livewire was last seen in We Can Be Heroes.
- This episode is set on July 30, 2020.