Supergirl Worlds Finest (Season 1, Episode 18)
TV-14
TV Episode | 43 min | Action, Adventure, Drama

Supergirl

Worlds Finest (Season 1, Episode 18)

TV-14

TV Episode | 43 min | , ,

Kara gains a new ally when the Flash arrives from a parallel universe and helps her fight the Silver Banshee and Livewire in exchange for helping him return home.

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Cast	+ Add Cast
17 cast members

Name	STARmeter	Known for
Melissa Benoist Kara Danvers / Supergirl Kara Danvers / Supergirl See fewer	Top 5000	Supergirl (2015)
Mehcad Brooks James Olsen James Olsen See fewer	Top 5000	Desperate Housewives (2004)
Chyler Leigh Alex Danvers (credit only) Alex Danvers (credit only) See fewer	Top 5000	Not Another Teen Movie (2001)
Jeremy Jordan Winn Schott Winn Schott See fewer	Members only	The Last Five Years (2014)
David Harewood Hank Henshaw (credit only) Hank Henshaw (credit only) See fewer	Top 5000	Blood Diamond (2006)
Calista Flockhart Cat Grant Cat Grant See fewer	Top 5000	Ally McBeal (1997)
Grant Gustin Barry Allen / The Flash Barry Allen / The Flash See fewer	Top 5000	The Flash (2014)
Jenna Dewan Lucy Lane (as Jenna Dewan-Tatum) Lucy Lane (as Jenna Dewan-Tatum) See fewer	Top 5000	Step Up (2006)
Chris Vance Non Non See fewer	Members only	Prison Break (2005)
Italia Ricci Siobhan Smythe / Silver Banshee Siobhan Smythe / Silver Banshee See fewer	Top 5000	Designated Survivor (2016)
Brit Morgan Leslie Willis / Livewire Leslie Willis / Livewire See fewer	Members only	Friend Request (2016)
Harriet Sansom Harris Sinead Sinead See fewer	Top 5000	Addams Family Values (1993)
Jay Jackson News Anchor News Anchor See fewer	Members only	Fast Five (2011)
Christopher Showerman Tor Tor See fewer	Members only	George of the Jungle 2 (2003)
Dawn Greenidge Pedestrian Woman Pedestrian Woman See fewer	Members only	Grey's Anatomy (2005)
Sarah Robson Dr. Amelia Hamilton Dr. Amelia Hamilton See fewer	Members only	Between the Forest and the Field (2012)
Dan Warner Fire Chief Fire Chief See fewer	Members only	Transformers: The Last Knight (2017)