Season Regulars 10

1. 

   Melissa Benoist

   Kara Danvers / Supergirl / Kara Zor-El

2. 

   Chyler Leigh

   Alex Danvers / Sentinel

3. 

   David Harewood

   J'onn J'onzz / Martian Manhunter

4. 

   Katie McGrath

   Lena Luthor

5. 

   Jesse Rath

   Querl 'Brainy' Dox / Brainiac-5

6. 

   Nicole Maines

   Nia Nal / Dreamer

7. 

   Azie Tesfai

   Kelly Olsen / Guardian

8. 

   Julie Gonzalo

   Andrea Rojas / Acrata

9. 

   Staz Nair

   William Dey

10. 

    Andrea Brooks

    Eve Tessmacher / Hope

Guest Stars 18

1. 

   Rahul Kohli

   Jack Spheer

2. 

   Patti Allan

   Leviathan Agent

3. 

   Nick Sagar

   Russell Rogers / Rip Roar

4. 

   Lucy Loken

   Young Lena Luthor

5. 

   Steven Bauer

   Bernardo Rojas

6. 

   Alexa Najera

   Young Andrea Rojas

7. 

   Duncan Fraser

   Leviathan Messenger

8. 

   Shawn Ahmed

   Aide

9. 

   Jan Bos

   Governor Tom Harper

10. 

    Miguel Castillo

    Guide

11. Lynn Colliar

    Newscaster

12. 

    Amanda Gray

    DEO Agent #2

13. Samantha Davis

    4 Year Old Lena

14. 

    Arran Henn

    News Anchor #2

15. Kelvin Lum

    DEO Agent #1

16. 

    Ryan Mah

    Officer

17. 

    Sonia Sunger

    News Anchor

18. 

    Jon Cryer

    Lex Luthor

Crew 4