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Supergirl/Flash Crossover “Worlds Finest” Description & Promo Pic

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CBS has released an official description for the Supergirl/Flash crossover episode “Worlds Finest” airing Monday, March 28 on CBS.

supergirlflashartThey have also released some cool promo art which you can see to your left. It’s evocative of the classic Superman #199 as well as other homages that came decades later. Here’s the description with some new spoilers, including the coming of a Dr. Amelia Hamilton (a nod to Dr. Emil Hamilton?):

SUPERGIRL GAINS A NEW ALLY WHEN THE LIGHTNING-FAST SUPERHERO ‘THE FLASH’ HELPS HER BATTLE LIVEWIRE AND SILVER BANSHEE, ON “SUPERGIRL,” MONDAY, MARCH 28
Grant Gustin Crosses Over as “The Flash”

“Worlds Finest” – Kara gains a new ally when the lightning-fast superhero The Flash (Grant Gustin) 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, on SUPERGIRL, Monday, March 28 (8:00-9:00 PM) on the CBS Television Network. Grant Gustin crosses over as The Flash.

Supergirl stars Melissa Benoist (Kara Danvers/Supergirl), Calista Flockhart (Cat Grant), Chyler Leigh (Alex Danvers), Mehcad Brooks (James Olsen), David Harewood (Hank Henshaw/J’onn J’onzz), and Jeremy Jordan (Winslow “Winn” Schott).

Recurring guests in “Worlds Finest” include Jenna Dewan-Tatum (Lucy Lane), Chris Vance (Non), Italia Ricci (Siobhan Smythe), Brit Morgan (Leslie Willis/Livewire), Christopher Showerman (Tor), Jay Jackson (News Anchor), and Dan Warner (Fire Captain).

Guest stars in the episode also include Grant Gustin (The Flash/Barry Allen), Jamie Kaler (Pundit #1), Samantha Harris (Pundit #2), Zarek King (Young Boy), Sarah Robson (Dr. Amelia Hamilton), Harriet Sansom Harris (Sinead), Dawn Greenidge (Pedestrian Woman)

STORY BY: Greg Berlanti

TELEPLAY BY: Andrew Kreisberg & Michael Grassi

BASED ON: The Characters Appearing in the DC Comics

DIRECTED BY: Nick Gomez

Read more Supergirl spoilers on our Supergirl Spoilers Page! – Read more about The Flash at FlashTVNews

About the author

About the author

Craig Byrne

Craig Byrne has been writing about Superman TV since 1995, when the "Lois & Clark Krypton Club" launched. He founded KryptonSite.com in February 2001, becoming the first fan site for The WB/CW television series Smallville. He also wrote the Official Companion books for Smallville seasons 4-7 as well as the Smallville Visual Guide.

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There is 1 comment

  1. SVIlleGal03

    March 9, 2016

    Wait….”Dr. Amelia Hamilton”? Any relation to Emil?

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About KryptonSite

In a time before social media, Craig Byrne created KryptonSite as the ultimate fan destination for The WB/CW series Smallville which starred Tom Welling, Michael Rosenbaum, Kristin Kreuk, Erica Durance and more. In the decades since, KryptonSite has grown to cover newer Superman-related TV and movie projects while still always holding on to Smallville.

The web’s first source for Smallville news, continuing to cover Supergirl, Superman & Lois, the new Superman films and more!

Copyright © 2026 Craig Byrne & KryptonSite and the respective original authors of posts. Smallville, Kryptonite and other Superman-related items are the property of DC Comics. No infringement is intended.

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