Supergirl - Season 1 Episode 18
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.
- genus: Drama, Sci-Fi & Fantasy, Action & Adventure
- Studio: CBS, The CW
- keyword: superhero, based on comic, alien, female protagonist, meditative, candid, thoughtful, loving, introspective, inspirational, wistful, intimate, dramatic, adoring, defiant, dignified, earnest, empathetic, gentle, hopeful, optimistic, sincere
- cast: Melissa Benoist, Chyler Leigh, David Harewood, Katie McGrath, Jesse Rath, Nicole Maines
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