Lena Luthor - Supergirl

Supergirl

Main cast, played by Katie McGrath

Episode 3x01: Girl of Steel (Oct 9, 2017)
Episode 3x02: Triggers (Oct 16, 2017)
Episode 3x04: The Faithful (Oct 30, 2017)
Episode 3x05: Damage (Nov 6, 2017)
Episode 3x09: Reign (Dec 4, 2017)
Episode 3x10: Legion of Super-Heroes (Jan 15, 2018)
Episode 3x11: Fort Rozz (Jan 22, 2018)
Episode 3x12: For Good (Jan 29, 2018)
Episode 3x13: Both Sides Now (Feb 5, 2018)
Episode 3x14: Schott Through the Heart (Apr 16, 2018)
Episode 3x15: In Search of Lost Time (Apr 23, 2018)
Episode 3x16: Of Two Minds (Apr 30, 2018)
Episode 3x17: Trinity (May 7, 2018)
Episode 3x18: Shelter from the Storm (May 14, 2018)
Episode 3x19: The Fanatical (May 21, 2018)
Episode 3x20: Dark Side of the Moon (May 28, 2018)
Episode 3x21: Not Kansas (Jun 4, 2018)
Episode 3x22: Make It Reign (Jun 11, 2018)
Episode 3x23: Battles Lost and Won (Jun 18, 2018)
Episode 4x01: The American Alien (Oct 14, 2018)
Episode 4x02: Fallout (Oct 21, 2018)
Episode 4x03: Man of Steel (Oct 28, 2018)
Episode 4x04: Ahimsa (Nov 4, 2018)
Episode 4x05: Parasite Lost (Nov 11, 2018)
Episode 4x06: Call to Action (Nov 18, 2018)
Episode 4x07: Rather the Fallen Angel (Nov 25, 2018)
Episode 4x10: Suspicious Minds (Jan 20, 2019)
Episode 4x11: Blood Memory (Jan 27, 2019)
Episode 4x12: Menagerie (Feb 17, 2019)
Episode 4x13: What's So Funny About Truth, Justice, and the American Way? (Mar 3, 2019)
Episode 4x14: Stand and Deliver (Mar 10, 2019)
Episode 4x15: O Brother, Where Art Thou? (Mar 17, 2019)
Episode 4x16: The House of L (Mar 24, 2019)
Episode 4x17: All About Eve (Mar 31, 2019)
Episode 4x18: Crime and Punishment (Apr 21, 2019)
Episode 4x19: American Dreamer (Apr 28, 2019)
Episode 4x20: Will the Real Miss Tessmacher Please Stand Up? (May 5, 2019)
Episode 4x21: Red Dawn (May 12, 2019)
Episode 4x22: The Quest for Peace (May 19, 2019)
Episode 5x01: Event Horizon (Oct 6, 2019)
Episode 5x02: Stranger Beside Me (Oct 13, 2019)
Episode 5x03: Blurred Lines (Oct 20, 2019)
Episode 5x04: In Plain Sight (Oct 27, 2019)
Episode 5x05: Dangerous Liaisons (Nov 3, 2019)
Episode 5x06: Confidence Women (Nov 10, 2019)
Episode 5x07: Tremors (Nov 17, 2019)
Episode 5x08: The Wrath of Rama Khan (Dec 1, 2019)
Episode 5x09: Crisis on Infinite Earths: Part One (Dec 8, 2019)
Episode 5x10: The Bottle Episode (Jan 19, 2020)
Episode 5x11: Back from the Future - Part One (Jan 26, 2020)
Episode 5x12: Back from the Future - Part Two (Feb 16, 2020)
Episode 5x13: It's a Super Life (Feb 23, 2020)
Episode 5x14: The Bodyguard (Mar 8, 2020)
Episode 5x17: Deus Lex Machina (May 3, 2020)
Episode 5x18: The Missing Link (May 10, 2020)
Episode 5x19: Immortal Kombat (May 17, 2020)
Episode 6x01: Rebirth (Mar 30, 2021)
Episode 6x02: A Few Good Women (Apr 6, 2021)
Episode 6x03: Phantom Menaces (Apr 13, 2021)
Episode 6x04: Lost Souls (Apr 20, 2021)
Episode 6x07: Fear Knot (May 11, 2021)
Episode 6x08: Welcome Back, Kara! (Aug 24, 2021)
Episode 6x09: Dream Weaver (Aug 31, 2021)
Episode 6x10: Still I Rise (Sep 7, 2021)
Episode 6x11: Mxy in the Middle (Sep 14, 2021)
Episode 6x12: Blind Spots (Sep 21, 2021)
Episode 6x13: The Gauntlet (Sep 28, 2021)
Episode 6x14: Magical Thinking (Oct 5, 2021)
Episode 6x15: Hope for Tomorrow (Oct 12, 2021)
Episode 6x16: Nightmare in National City (Oct 19, 2021)
Episode 6x17: I Believe in a Thing Called Love (Oct 26, 2021)
Episode 6x18: Truth or Consequences (Nov 2, 2021)
Episode 6x19: The Last Gauntlet (Nov 9, 2021)
Episode 6x20: Kara (Nov 9, 2021)

Guest cast, played by Katie McGrath

Episode 2x01: The Adventures of Supergirl (Oct 10, 2016)
Episode 2x03: Welcome to Earth (Oct 24, 2016)
Episode 2x04: Survivors (Oct 31, 2016)
Episode 2x05: Crossfire (Nov 7, 2016)
Episode 2x08: Medusa (Nov 28, 2016)
Episode 2x12: Luthors (Feb 13, 2017)
Episode 2x15: Exodus (Mar 6, 2017)
Episode 2x18: Ace Reporter (Apr 24, 2017)
Episode 2x19: Alex (May 1, 2017)
Episode 2x20: City of Lost Children (May 8, 2017)
Episode 2x21: Resist (May 15, 2017)
Episode 2x22: Nevertheless, She Persisted (May 22, 2017)