With a wide variety of incoming characters, Supergirl season four could be viewed as essentially a soft reboot of sorts as the Girl of Steel (Melissa Benoist) tackles more grounded threats from the likes of Agent Liberty (Sam Witwer), Mercy Graves (Rhona Mitra), and other yet-to-be-revealed evildoers.
While J'onn (David Harewood), Jimmy (Mehcad Brooks), and Alex (Chyler Leigh) will all return to assist Kara in her superhero efforts, with Winn (Jeremy Jordan) gone to the future, the team will have a pair of new allies to break in with Brainiac-5 (Jesse Rath) staying at the DEO full-time and Nia Nal (Nicole Maines) making her DC TV debut in the season premiere.
"American Alien" - (8:00-9:00 p.m. ET) (Content Rating TBD) (HDTV)
Original airdate 10/14/2018.
Check out hi-res photos from the season premiere, titled "American Alien," below:
To view every photo at once, simply click on the VIEW LIST (ONE PAGE) button!
Supergirl -- "American Alien" -- Image Number: SPG401a_0063b.jpg -- Pictured: Katie McGrath as Lena Luther -- Photo: Bettina Strauss/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.
Supergirl -- "American Alien" -- Image Number: SPG401a_0068b.jpg -- Pictured (L-R): Melissa Benoist as Kara/Supergirl, Katie McGrath as Lena Luther and Mehcad Brooks as James Olsen/Guardian -- Photo: Bettina Strauss/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.
Supergirl -- "American Alien" -- Image Number: SPG401a_0118b.jpg -- Pictured (L-R): Mehcad Brooks as James Olsen/Guardian and Katie McGrath as Lena Luther -- Photo: Bettina Strauss/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.
Supergirl -- "American Alien" -- Image Number: SPG401a_0251b.jpg -- Pictured: Melissa Benoist as Kara/Supergirl -- Photo: Bettina Strauss/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.
Supergirl -- "American Alien" -- Image Number: SPG401a_0304b.jpg -- Pictured (L-R): Nicole Maines as Nia Nal and Jaymee Mak as Mackenzie -- Photo: Bettina Strauss/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.
Supergirl -- "American Alien" -- Image Number: SPG401a_0320b.jpg -- Pictured (L-R): Nicole Maines as Nia Nal and Jaymee Mak as Mackenzie -- Photo: Bettina Strauss/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.
Supergirl -- "American Alien" -- Image Number: SPG401a_0383b.jpg -- Pictured (L-R): Nicole Maines as Nia Nal and Melissa Benoist as Kara/Supergirl -- Photo: Bettina Strauss/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.
Supergirl -- "American Alien" -- Image Number: SPG401a_0405b.jpg -- Pictured (L-R): Nicole Maines as Nia Nal and Melissa Benoist as Kara/Supergirl -- Photo: Bettina Strauss/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.
Supergirl -- "American Alien" -- Image Number: SPG401a_0450b.jpg -- Pictured (L-R): Nicole Maines as Nia Nal and Melissa Benoist as Kara/Supergirl -- Photo: Bettina Strauss/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.
Supergirl -- "American Alien" -- Image Number: SPG401a_0470b.jpg -- Pictured: Nicole Maines as Nia Nal -- Photo: Bettina Strauss/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.
Supergirl -- "American Alien" -- Image Number: SPG401a_BTS_0590b.jpg -- Pictured (L-R): Melissa Benoist as Kara/Supergirl and Nicole Maines as Nia Nal -- Photo: Bettina Strauss/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.
Supergirl -- "American Alien" -- Image Number: SPG401b_0024b.jpg -- Pictured (L-R): Rhona Mitra as Mercy Graves and Robert Baker as Otis Graves -- Photo: Bettina Strauss/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.
Supergirl -- "American Alien" -- Image Number: SPG401b_0101b.jpg -- Pictured: Melissa Benoist as Kara/Supergirl -- Photo: Bettina Strauss/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.
Supergirl -- "American Alien" -- Image Number: SPG401b_0153b.jpg -- Pictured: Robert Baker as Otis Graves -- Photo: Bettina Strauss/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.
Supergirl -- "American Alien" -- Image Number: SPG401b_0217b.jpg -- Pictured: Melissa Benoist as Kara/Supergirl -- Photo: Bettina Strauss/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.
Supergirl -- "American Alien" -- Image Number: SPG401b_0259b.jpg -- Pictured: Vincent Gale as Dr. Rohan Vose and David Harewood as Hank Henshaw/J'onn J'onzz -- Photo: Bettina Strauss/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.
Supergirl -- "American Alien" -- Image Number: SPG401b_0231b.jpg -- Pictured: Melissa Benoist as Kara/Supergirl -- Photo: Bettina Strauss/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.
Season three saw Supergirl stop Reign and the other Worldkillers’ threat to humanity and our planet, and in the process, Kara was shocked to find her mother Alura alive and living in a salvaged Argo City that survived the destruction of Krypton. Reconnecting with her past caused Kara to realize that her true home is now here on Earth, where big changes are taking place for her and all of her friends in National City – and also, it appears, for a doppelganger in Russia! Season four promises to be full of surprises, action, adventure and lots of big revelations for Supergirl, Alex, James, J’onn, Lena and Brainy.
Supergirl features:
Melissa Benoist as Kara Zor-El/Supergirl
Mehcad Brooks as James 'Jimmy' Olsen/Guardian
Chyler Leigh as Alexandra 'Alex' Danvers
Jeremy Jordan as Winslow 'Winn' Schott
David Harewood as J'onn J'onzz/Martian Manhunter
Katie McGrath as Lena Luthor
Jesse Rath as Querl Dox/Brainiac 5
Sam Witwer as Agent Liberty
Nicole Maines as Nia Nal/Dreamer
April Parker Jones as Colonel Haley
David Ajala as Manchester Black
Rhona Mitra as Mercy Graves
Robert Baker as Otis Graves
Erica Durance as Alura Zor-El
Supergirl returns with a brand new episode on October 14