The Flash (2014– )
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Crisis on Earth-X, Part 3 

The gang comes together for Barry and Iris's wedding, but the ceremony is crashed by villains from Earth-X.


Dermott Downs (as Dermott Daniel Downs)


Greg Berlanti (developed by), Andrew Kreisberg (developed by) | 4 more credits »




Episode cast overview, first billed only:
Grant Gustin ... Barry Allen / The Flash
Candice Patton ... Iris West
Danielle Panabaker ... Caitlin Snow / Killer Frost
Carlos Valdes ... Cisco Ramon / Vibe
Tom Cavanagh ... Dr. Harry Wells / Eobard Thawne / Reverse Flash
Jesse L. Martin ... Joe West (credit only)
Stephen Amell ... Oliver Queen / Green Arrow / Dark Arrow
Victor Garber ... Dr. Martin Stein
Emily Bett Rickards ... Felicity Smoak
Caity Lotz ... Sara Lance / White Canary
Chyler Leigh ... Alex Danvers
Franz Drameh ... Jefferson Jackson / Firestorm
Paul Blackthorne ... Quentin Lance
Jeremy Jordan ... Winn Schott
Juliana Harkavy ... Dinah Drake / Black Canary


Barry (guest star Grant Gustin) and Iris's (guest star Candice Patton) wedding brings the gang together, but things go awry when villains from Earth-X attack the ceremony. All of the superheroes band together with help from their super friends like Citizen Cold (guest star Wentworth Miller), The Ray (guest star Russell Tovey), Felicity Smoak (guest star Emily Bett Rickards), Iris West and Alex Danvers (Chyler Leigh) to take on their most formidable villains yet. Earth's mightiest heroes - Green Arrow (guest star Stephen Amell), Supergirl (Melissa Benoist), The Flash (guest star Grant Gustin) and White Canary (guest star Caity Lotz) - lead their teams into battle to save the world.

Plot Summary | Add Synopsis


TV-14 | See all certifications »

Parents Guide:

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Did You Know?


Felicity refers to Iris as "McClane." This is an allusion to John McClane, a character portrayed by Bruce Willis, in Die Hard (1988) and its sequels. See more »


When Green Arrow, White Canary, Citizen Cold and Alex Danvers attack the Portal compound on Earth-X, while shooting, the drawstring for Oliver's bow disappears each time an arrow is fired. This is due to the CGI used. See more »


Sturmbannführer: [to Oliver] I know you are not him, but I cannot stomach the sight regardless.
[covers Oliver's face]
See more »

Crazy Credits

The usual opening narration and title card are replaced by a special "Crisis on Earth-X" sequence. See more »


References The Terminator (1984) See more »

User Reviews

Totally out of the plot
9 January 2019 | by jodi-44528See all my reviews

I was very disappointed in this episode. Couldn't get past the first few minutes, and then I realized it was the third part of four, which were all crossover episodes over four different shows. I don't watch the other three and don't plan to. I feel cheated that they did the wedding on one of the other shows. The least they could have done is include all four parts so that viewers weren't vaulted out of the story line. Crummy way to do such an anticipated event between Barry and Iris.

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Release Date:

28 November 2017 (USA) See more »

Also Known As:

Crisis on Earth-X, Part 3 See more »

Company Credits

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Technical Specs


Sound Mix:




Aspect Ratio:

16:9 HD
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