The sixth season of Supergirl comprises 20 episodes and 11 stories.
Season Summary
Main Cast
- Melissa Benoist as Kara Danvers/Supergirl, Dark Kara, & Red Daughter (20/20)
- Chyler Leigh as Alex Danvers & Teshaoysha Mez-Kix (19/20)
- Katie McGrath as Lena Luthor (19/20)
- Odette Annable as Reign & Samantha Arias (16/20)
- Tyler Hoechlin as Clark Kent/Superman & Jor-El (20/20)
- Olivia Wilde as Susannah Russo (14/20)
- Jenna Dewan as Lucy Lane (13/20)
- Minka Kelly as Dawn Granger (17/20)
- Claire Holt as Karen Starr/Power Girl (17/20)
- Michael Rosenbaum as LX-52 & President Lex Luthor (Earth-30) (17/20)
- with Emmy Rossum as Zaora Dru-Zod (18/20)
- with Mehcad Brooks as James Olsen/Guardian (13/20)
- and David Harewood as J'onn J'onzz/Martian Manhunter (13/20)
Supporting Cast
Special Guest & Recurring Cast
- Helen Slater as Eliza Danvers (11/20)
- Luke Evans as Bruce Wayne/Batman & Thomas Wayne III/Owlman (4/20)
- Katie Cassidy Rodgers as Laurel Lance/Black Canary & Dinah Lance/Scream Queen (4/20)
- Jason Momoa as King Arthur Curry/Aquaman & Lobo (4/20)
- Rekha Sharma as Vel Nez-Oz (4/20)
- Amber Heard as Queen Mera & Hila (3/20)
- Grant Gustin as Barry Allen/The Flash (3/20)
- Erica Durance as Alura Zor-L (3/20)
- Patrick Wilson as Orm Marius (2/20)
- Jon Cryer as Lex Luthor (2/20)
- Max Martini as Slade Wilson (Earth-3)/Deathstroke (2/20)
- Tricia Helfer as Soshesa Sal-Im (2/20)
- Laura Benanti as Astra In-Ze (2/20)
- Tom Welling as Clark Luthor/Ultraman (1/20)
Recurring Cast
- Emmanuelle Chriqui as Sarah Essen (11/20)
- Rachel Nichols as Slam Bradley (11/20)
- Matt Letscher as Eobard Thawne/Reverse-Flash (8/20)
- Laura Vandervoort as Indigo (8/20)
- Troian Bellisario as Mary Seward (7/20)
- Lili Reinhart as Aethryr (7/20)
- Tamzin Merchant as Lyra Strayd (5/20)
- Teressa Liane as Mary Louise Fairchild (5/20)
- Scarlett Byrne as Nora Fairchild (5/20)
- Marie Avgeropoulos as Diana, Princess of Themyscira/Wonder Woman (5/20)
- Wallis Day as Nyssa-Vex (3/20)
- Dichen Lachman as Talia al Ghul (Earth-27) (3/20)
- Esme Bianco as Elsala Sym-Ro (3/20)
- Daniel Sharman as Lor-Zod (2/20)
- Tasya Teles as Destri Sol-Gud (2/20)
- and Dianna Agron as Raya Zod-El (2/20)
Guest Cast
Episode/Story List
- Seeing Double
- {The Justice League of America (episode)/Throne of Atlantis/Trinity War}
- {From The Ashes/We Will Rise/The Sun Also Rises}
- Lobo
- The Crime Syndicate
- {Curiosity Killed The Kryptonian/Lost in Paradise/Hold On, We're Going Home/Kaipahdh Tov Guhlogho Krighiu w Tov Dovrrosho}
- {Shatter Me/Get Your Soul Back/The Grey}
- {The Preacher/Somewhere I Belong}
- {Angels Fall/Such Rage In Your Heart}
Trivia
- Kara and Clark are the only characters to appear in all 20 episodes.
- Eobard Thawne is the Big Bad of this season.
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