Supergirl/Worlds Finest

Worlds Finest
Season 1, Episode 18
Airdate	March 28, 2016
Production Number	4X7618
Teleplay by	Andrew Kreisberg & Michael Grassi
Story by	Greg Berlanti
Directed by	Nick Gomez
Stream
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Supergirl — Season One

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Worlds Finest is the eighteenth episode of the first season of Supergirl.

Starring: Melissa Benoist (Kara Zor-El / Kara Danvers / Supergirl), Mehcad Brooks (James Olsen), Chyler Leigh (Alexandra "Alex" Danvers) (credit only), Jeremy Jordan (Winslow "Winn" Schott)

with David Harewood (Hank Henshaw / J'onn J'onzz) (credit only)

and Calista Flockhart (Cat Grant)

Special Guest Star: Grant Gustin (Barry Allen / The Flash),

and Jenna Dewan Tatum (Lucy Lane)

Guest Starring: Chris Vance (Non), Italia Ricci (Siobhan Smythe / Silver Banshee), Brit Morgan (Leslie Willis / Livewire), Harriet Sansom Harris (Sinead)

Co-Starring: Jay Jackson (News Anchor), Christopher Showerman (Tor), Dawn Greenidge (Pedestrian Woman), Sarah Robson (Dr. Amelia Hamilton), Dan Warner (Fire Chief)