Supergirl/Flash Crossover Poster & Episode Synopsis

Supergirl / Flash Crossover Poster: Worlds Finest

This is awesome. Heroic Hollywood has the poster and episode description for the March 28 crossover episode of Supergirl featuring Grant Gustin 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.

I love the way the poster echoes the classic cover of the first Superman/Flash race back in Superman #199 (via

Superman #199 - Race with The Flash


3 thoughts on “Supergirl/Flash Crossover Poster & Episode Synopsis

  1. FLASH

    I cannot wait for this crossover. It is going to be super! Interesting, though, that Flash comes from an alternate universe. I suppose it has to be that way because both shows are on different stations. One thing is sure, if there can be a Supergirl/Flash crossover, there will be a Flash/Supergirl crossover. Maybe even a “ménage à trois” crossover with all teams, eventually.

  2. Kelson Post author

    I don’t think it’s just the fact that they’re on different networks. The shows have different backgrounds to their worlds:

    On “Supergirl,” Superman has been operating in public for something like 15 years. That’s hard to reconcile with the sudden appearance of metahumans two years ago in the “Flash”/”Arrow” verse.

    Additionally, Kara makes her debut as the world’s second public super-hero at the beginning of the show — at a time when Flash has been around for a year and Team Arrow (admittedly not super-powered) for several. It’s a little different if she’s the first new superhero in 15 years vs. just the latest of many.


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