S1·E18 – Worlds Finest⭐ 3.7/5
2016-03-28 • 43 min
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.
Cast
Melissa Benoist
Kara Danvers / Supergirl / Kara Zor-El
Chyler Leigh
Alex Danvers / Sentinel
David Harewood
J'onn J'onzz / Martian Manhunter
Jeremy Jordan
Winn Schott
Calista Flockhart
Cat Grant
Mehcad Brooks
James 'Jimmy' Olsen / Guardian
Jenna Dewan
Lucy Lane
Chris Vance
Non
Brit Morgan
Leslie Willis / Livewire
Harriet Sansom Harris
Sinead
Grant Gustin
Barry Allen / The Flash
Christopher Showerman
Tor
