|Off With Her Head|
|Season 4, Episode 1 (31)|
A SHROUD OVER NATIONAL CITY- When Essen notices a familiar pattern to a string of over-the-top killings, she calls in Detective Bradley for aid and Lena plans a sister's night for Kara and Alex. Livewire also helps Essen crack her case.
- Melissa Benoist as Kara Danvers/Supergirl
- Chyler Leigh as Alex Danvers
- Katie McGrath as Lena Luthor
- Odette Annable as Samantha Arias
- Olivia Wilde as Susannah Russo
- Jenna Dewan as Lucy Lane
- Minka Kelly as Dawn Granger
- Claire Holt as Karen Starr/Power Girl
- Emmy Rossum as Zaora Dru-Zod
- Brenda Strong as Lillian Luthor
- Wallis Day as Chief Magistrate Nyssa-Vex
- and Laura Benanti as Astra
- Matthew Fox as Graham Etchison/Abattoir
- Emmanuelle Chriqui as Sarah Essen
- Rachel Nichols as Slam Bradley
- Brit Morgan as Livewire
- Tamzin Merchant as Lyra Strayd
- Antagonist: Graham Etchison
- This episode is Essen-centric.
- This episode takes place on June 6, 2023.
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