Kara gains a new ally when the lightning-fast superhero The Flash suddenly appears from an alternate universe and helps Kara battle Siobhan, aka Silver Banshee, and Livewire in exchange for her help in finding a way to return him home.

Aired on 03/28/2016
43 :
8.89/10 • 2991 voting

Supergirl • S01E18
Melissa Benoist Melissa BenoistKara Danvers / Supergirl / Kara Zor-El
Chyler Leigh Chyler LeighAlex Danvers
David Harewood David HarewoodJ'onn J'onzz / Hank Henshaw / Cyborg Superman
Mehcad Brooks Mehcad BrooksJames Olsen / Guardian
Katie McGrath Katie McGrathLena Luthor
Jesse Rath Jesse RathQuerl Dox / Brainiac-5
Nicole Maines Nicole MainesNia Nal / Dreamer
Jenna Dewan Jenna DewanLucy Lane
Chris Vance Chris VanceNon
Brit Morgan Brit MorganLeslie Willis / Livewire
Italia Ricci Italia RicciSiobhan Smythe
Christopher Showerman Christopher ShowermanTor
Harriet Sansom Harris Harriet Sansom HarrisSinead
Grant Gustin Grant GustinBarry Allen / The Flash
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  • Original title


  • Type

    TV series

  • Episodes

    5 Seasons • 84 Episodes

  • Rating

    6.6/10 (72 896 voting)

  • Popularity : 100%

  • Country of origin


  • Original language(s)


  • Running time

    42 :

  • Website…

  • Status

    Returning series