Supergirl Girl of Steel (Season 3, Episode 1)
TV-14
TV Episode | 42 min | Action, Adventure, Drama

Supergirl

Girl of Steel (Season 3, Episode 1)

TV-14

TV Episode | 42 min | Action, Adventure, Drama

Kara deals with the loss of Mon-El by focusing her energy on being Supergirl and concentrating on a mysterious new threat. Alex confesses a secret to Maggie. A citizen of National City has a mysterious connection to Kara. Lena makes a bold move.

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Cast	+ Add Cast
24 cast members

Name	Known for
Melissa Benoist Kara Danvers / Supergirl Kara Danvers / Supergirl See fewer	Supergirl (2015)
Mehcad Brooks James Olsen James Olsen See fewer	Desperate Housewives (2004)
Chyler Leigh Alex Danvers Alex Danvers See fewer	Not Another Teen Movie (2001)
Jeremy Jordan Winn Schott Winn Schott See fewer	The Last Five Years (2014)
Katie McGrath Lena Luthor Lena Luthor See fewer	Jurassic World (2015)
Odette Annable Samantha Arias Samantha Arias See fewer	Cloverfield (2008)
Chris Wood Mon-El Mon-El See fewer	Containment (2016)
David Harewood J'onn J'onzz J'onn J'onzz See fewer	Blood Diamond (2006)
Calista Flockhart Cat Grant Cat Grant See fewer	Ally McBeal (1997)
Floriana Lima Maggie Sawyer Maggie Sawyer See fewer	The Punisher (2017)
Erica Durance Alura Zor-El Alura Zor-El See fewer	The Butterfly Effect 2 (2006)
Emma Tremblay Ruby Arias Ruby Arias See fewer	Elysium (I) (2013)
David St. Louis Robert DuBois / Bloodsport Robert DuBois / Bloodsport See fewer	Bad Monkey
Adrian Pasdar Morgan Edge Morgan Edge See fewer	Carlito's Way (1993)
Jeremy Burtenshaw Gunner Gunner See fewer	Supergirl (2015)
Jesse Chongo Young Fan Young Fan See fewer	Legion (2017)
Carlen Escarraga Soldier Soldier See fewer	Supergirl (2015)
Josh Hallem Brian Brian See fewer	Window of Opportunity (2023)
Fred Henderson Mayor Mayor See fewer	Final Destination 2 (2003)
Sonia Sunger Newscaster Newscaster See fewer	Deadpool 2 (2018)
Gelsea Mae Staffer #2 Staffer #2 See fewer	Exhibit Mae (2023)
Marc Senior Staffer #1 Staffer #1 See fewer	In God I Trust (2018)
Yorkie Joaquin Crowd (uncredited) Crowd (uncredited) See fewer	Solitary (VII)
Shane Kim Soldier (uncredited) Soldier (uncredited) See fewer	Supernatural (2005)