Season Regulars 7

  1. Melissa Benoist

    Melissa Benoist
    Kara Danvers

  2. Chyler Leigh

    Chyler Leigh
    Alex Danvers

  3. Mehcad Brooks

    Mehcad Brooks
    Jimmy Olsen

  4. Jeremy Jordan

    Jeremy Jordan
    Winn Schott

  5. David Harewood

    David Harewood
    J'onn J'onzz / Hank Henshaw

  6. Chris Wood

    Chris Wood
    Mon-El

  7. Floriana Lima

    Floriana Lima
    Maggie Sawyer

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Crew 4

Production

  1. Jessica Queller

    Jessica Queller
    Co-Executive Producer

  2. Andrew Kreisberg

    Andrew Kreisberg
    Executive Producer

  3. Greg Berlanti

    Greg Berlanti
    Executive Producer

  4. Ali Adler

    Ali Adler
    Executive Producer

Show

Episodes 22

October 10, 2016
7.6

When a new threat emerges in National City, Kara/Supergirl teams up with her cousin, Clark Kent/Superman, to stop it. Kara is thrilled to have family in town but it leaves Alex feeling a bit left out. Meanwhile, Hank and Supergirl are stunned by the pod that came crashing to Earth.

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Crew 5

Directed by: Glen Winter

Written by: No writer has been added.

Guest Stars 7 Full Cast & Crew

  1. Amanda May

    Amanda May
    Pilot 1

  2. Brenda Strong

    Brenda Strong
    Cadmus Scientist

  3. Frederick Schmidt

    Frederick Schmidt
    John Corben / Metallo

  4. Andrea Brooks

    Andrea Brooks
    Eve Teschmacher

  5. Tyler Hoechlin

    Tyler Hoechlin
    Clark Kent / Superman

  6. Katie McGrath

    Katie McGrath
    Lena Luthor

  7. Calista Flockhart

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October 17, 2016
5.7

CADMUS attacks National City with a Kryptonite-powered villain who ends up seriously hurting Supergirl. Superman blames Hank because the Kryptonite was stolen from the DEO. Meanwhile, Kara’s first day at her new job doesn’t go as planned after she meets her new boss, Snapper Carr.

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Crew 3

Directed by: Glen Winter

Written by: Robert Rovner, Caitlin Parrish

Guest Stars 6 Full Cast & Crew

  1. Brenda Strong

    Brenda Strong
    Cadmus Scientist

  2. Ian Gomez

    Ian Gomez
    Snapper Carr

  3. Rich Ting

    Rich Ting
    Dr. Gilcrist / Metallo 2

  4. Frederick Schmidt

    Frederick Schmidt
    John Corben / Metallo

  5. Tyler Hoechlin

    Tyler Hoechlin
    Clark Kent / Superman

  6. Calista Flockhart

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October 24, 2016
6.8

An attack is made on the President as hot-button, alien vs. human rights issues heat up in National City. Supergirl and the DEO are assigned to protect the President and bring in the responsible party. Alex teams up with Detective Maggie Sawyer to investigate the case while Kara searches for a recently escaped Mon-El, who she fears may be the alien behind the assault.

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Crew 3

Directed by: Rachel Talalay

Written by: Jessica Queller, Derek Simon

Guest Stars 4 Full Cast & Crew

  1. Sharon Leal

    Sharon Leal
    M'gann M'orzz

  2. Ian Gomez

    Ian Gomez
    Snapper Carr

  3. Katie McGrath

    Katie McGrath
    Lena Luthor

  4. Lynda Carter

    Lynda Carter
    President Olivia Marsdin

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October 31, 2016
7.4

When Kara and Alex investigate the murder of an unregistered alien, the trail leads to an alien fight club run by Roulette, the ringmaster who commands aliens to fight in mortal combat for the entertainment of rich humans. While trying to stop the fighting, Supergirl and Martian Manhunter find themselves up against a surprising opponent. Meanwhile, Hank is thrilled to have found another Martian and tries to get to know M'Gann better. Supergirl takes Mon-El under her wing and begins to train him.

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Crew 2

Directed by: James Marshall

Written by: Paula Yoo

Guest Stars 7 Full Cast & Crew

  1. John DeSantis
  2. Ian Casselberry
  3. Dichen Lachman

    Dichen Lachman
    Veronica Sinclair / Roulette

  4. Sharon Leal

    Sharon Leal
    M'gann M'orzz

  5. Ian Gomez

    Ian Gomez
    Snapper Carr

  6. Katie McGrath

    Katie McGrath
    Lena Luthor

  7. Laura Benanti

    Laura Benanti
    Alura Zor-El

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November 7, 2016
5.5

Supergirl must beat a ruthless new gang who has been armed with dangerous new alien technology. When Cadmus sends a video to the DEO, the team realizes Cadmus is the one staffing the criminals for a secret mission. Meanwhile, Kara gets Mon-El a job as an intern at CatCo, James makes an important decision and Lena invites Kara to attend one her fundraisers.

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Crew 3

Directed by: Glen Winter

Written by: Gabriel Llanas, Anna Musky-Goldwyn

Guest Stars 4 Full Cast & Crew

  1. Alexander Cendese

    Alexander Cendese
    Chet Miner

  2. Brenda Strong

    Brenda Strong
    Lillian Luthor

  3. Andrea Brooks

    Andrea Brooks
    Eve Teschmacher

  4. Katie McGrath

    Katie McGrath
    Lena Luthor

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November 14, 2016
6.5

The Guardian debuts to lend a hand after a parasite alien drains Supergirl of her power. Mon-El considers a less than desirable new career which then leads him to contemplate his motives. Alex struggles with a new reality.

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Crew 4

Directed by: Larry Teng

Written by: No writer has been added.

Guest Stars 5 Full Cast & Crew

  1. Jason Gray-Stanford

    Jason Gray-Stanford
    Rand O'Reilly

  2. Nikohl Boosheri

    Nikohl Boosheri
    Kelly Sotto

  3. William Mapother

    William Mapother
    Dr. Rudy Jones

  4. Brenda Strong

    Brenda Strong
    Lillian Luthor

  5. Sharon Leal

    Sharon Leal
    M'gann M'orzz

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November 21, 2016
6.8

While Guardian tries to clear his name after being accused of a murder committed by another vigilante, Supergirl heads out on a solo mission to rescue Mon-El who has been captured by Cadmus. While fighting to free Mon-El, Supergirl comes face to face with Cyborg Superman.

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Crew 3

Directed by: Glen Winter

Written by: Robert Rovner, Paula Yoo

Guest Stars 6 Full Cast & Crew

  1. Victor Zinck Jr.
    Phillip Karnowsky

  2. David Harewood

    David Harewood
    Cyborg Superman

  3. Brenda Strong

    Brenda Strong
    Lillian Luthor

  4. Sharon Leal

    Sharon Leal
    M'gann M'orzz

  5. Ian Gomez

    Ian Gomez
    Snapper Carr

  6. Dean Cain

    Dean Cain
    Jeremiah Danvers

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November 28, 2016
7.8

Eliza comes to town to celebrate Thanksgiving with her daughters. Alex decides it’s time to come out to her mother; Kara is shocked when Eliza suggests Mon-El has feelings for her, and Winn and James consider telling Kara the truth about the Guardian. Meanwhile, Cadmus unleashes a virus that instantly kills any alien in the vicinity so Kara enlists an unexpected ally – Lena Luthor. The epic superhero crossover kicks off tonight when Barry Allen and Cisco Ramon seek Kara's help with an alien invasion on their Earth.

The crossover continues on The Flash S03E08 Invasion! (II), Arrow S05E08 Invasion! (III) and DC's Legends of Tomorrow S02E07 Invasion! (IV).

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Crew 3

Directed by: Stefan Pleszczynski

Written by: Jessica Queller, Derek Simon

Guest Stars 7 Full Cast & Crew

  1. David Harewood

    David Harewood
    Cyborg Superman

  2. Carlos Valdes

    Carlos Valdes
    Cisco Ramon

  3. Brenda Strong

    Brenda Strong
    Lillian Luthor

  4. Katie McGrath

    Katie McGrath
    Lena Luthor

  5. Grant Gustin

    Grant Gustin
    Barry Allen / The Flash

  6. Robert Gant

    Robert Gant
    Zor-El

  7. Helen Slater

    Helen Slater
    Eliza Danvers

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January 23, 2017
6.8

Kara is moved by the story of a missing woman named Izzy and decides to investigate despite Snapper Carr's order to leave it alone. Kara takes Mon-El with her to the last place Izzy was seen and the duo find themselves thrust through a portal to another planet, Slaver's Moon, where the downtrodden are sold as slaves. The leader of the trafficking ring is none other than Roulette. To make matters worse, Slaver's Moon has a red sun, which means Kara and Mon-El are stripped of their powers and stuck on the planet with no way home. Meanwhile, back on Earth, Alex blames herself for Kara's disappearance, fearing she's become too focused on her new relationship with Maggie and too complacent in watching out for her sister.

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Crew 4

Directed by: Kevin Smith

Written by: No writer has been added.

Guest Stars 5 Full Cast & Crew

  1. Françoise Robertson

    Françoise Robertson
    Regina Williams

  2. James Urbaniak

    James Urbaniak
    Maaldorian Doctor

  3. Harley Quinn Smith

    Harley Quinn Smith
    Izzy Williams

  4. Dichen Lachman

    Dichen Lachman
    Veronica Sinclair / Roulette

  5. Ian Gomez

    Ian Gomez
    Snapper Carr

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January 30, 2017
6.3

After Livewire seemingly breaks out of prison, Supergirl is intent on recapturing her. After training Mon-El, Supergirl takes him with her when she sees Livewire attack the NCPD but things go awry when Mon-El puts Supergirl before the citizens of National City. Meanwhile, James decides to come clean with Kara and M’Gann, has a psychic attack and collapses into a coma.

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Crew 3

Directed by: Rebecca Johnson

Written by: Caitlin Parrish, Katie Rose Rogers

Guest Stars 5 Full Cast & Crew

  1. Marci T. House

    Marci T. House
    Dr. Hampton

  2. Jessie Graff

    Jessie Graff
    Lisa Gold

  3. Steve Valentine

    Steve Valentine
    Mad Scientist

  4. Sharon Leal

    Sharon Leal
    M'gann M'orzz

  5. Brit Morgan

    Brit Morgan
    Leslie Willis / Livewire

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