- as Kara Zor-El / Kara Danvers / Supergirl
- as Maxwell Lord
- as James Olsen
- as Alura Zor-El / Astra
- as Alex Danvers
- as Non
- as General Sam Lane
- as Winslow "Winn" Schott, Jr.
- as Hank Henshaw / Martian Manhunter
- as Zor-El
- as Cat Grant
- as Comatose Woman
- as Alien Soldier
- as Agent Vasquez
- as Scientist
- as Commander
- as Tor
- as Lord Guard
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