|A Luthor and a Super|
|Season 3, Episode 7|
|Human For Another Day||Brave Enough|
WORKING TOGETHER- To give Clark a day off, Lena heads to Metropolis with Alex when Brainiac resurfaces. While there, the duo learns that Brainiac has a new partner: Lex Luthor. In National City, Kara and J'onn must team with Lesla to defeat Lex's newest genetic experiment.
- Melissa Benoist as Kara Danvers/Supergirl
- Chyler Leigh as Alex Danvers
- Jeremy Jordan as Winn Schott (Earth-6)
- Katie McGrath as Lena Luthor
- Laura Benanti as Alura Zor-El & Astra In-Ze
- Zachary Quinto as General Dru-Zod
- Tyler Hoechlin as Clark Kent
- Floriana Lima as Maggie Danvers
- Odette Annable as Samantha Arias/Reign
- Jenna Dewan as Lucy Lane
- with Claire Holt as Karen Starr
- and David Harewood as J'onn J'onzz/Martian Manhunter
Special Guest StarEdit
- Jon Cryer as Lex Luthor
- Amy Acker as Brainiac & Vril Dox
- Dianna Agron as Raya Zod-El
- Tracy Spiridakos as Lesla-Lar
- Chad Lowe as Thomas Coville
- Andrea Brooks as Eve Teschmacher
- Emma Tremblay as Ruby Arias
- Robert Gant as Zor-El
- Wallis Day as Nyssa-Vex
- with Billy Zane as Lex Luthor
- and Michael Rosenbaum as Lex Luthor (Earth-30)
- Antagonists: Lex Luthor, Vril Dox, Brainiac
- 3rd episode this season to feature all main characters.
- The title is a reference to Lena's happy musing to Supergirl after her gala was crashed by Cadmus agents in Crossfire.
- This episode is Lena-centric.
- This episode takes place on June 7, 2020.