Crisis on Earth-X, Part 1

"Does anyone have just cause why these two should not be married? Speak now, or forever hold your peace. Peace is overrated."

- The Minister and Overgirl

Synopsis
Barry and Iris's 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, The Ray, Felicity Smoak, Iris West and Alex Danvers to take on their most formidable villains yet. Earth's mightiest heroes - Green Arrow, Supergirl, The Flash and White Canary - lead their teams into battle to save the world.

Protagonists

 * Super Friends
 * Supergirl (Kara Zor-El)
 * Alex Danvers
 * Winn Schott
 * Mon-El
 * J'onn J'onzz
 * Team Arrow
 * Green Arrow (Oliver Queen)
 * Felicity Smoak
 * Legends
 * Firestorm (Martin Stein)
 * White Canary (Sara Lance)
 * Heat Wave (Mick Rory)
 * Firestorm (Jefferson Jackson)
 * Team Flash
 * Joe West
 * Harry Wells
 * Iris West
 * Killer Frost (Caitlin Snow)
 * Cisco Ramon
 * The Flash (Barry Allen)
 * Kid Flash (Wally West)

Antagonists

 * Prometheus (Tommy Merlyn)
 * Dominator
 * Nazi Party
 * Reverse-Flash/Harrison Wells (Eobard Thawne)
 * Overgirl (Kara)
 * Dark Arrow (Oliver)
 * King Shark (Shay Lamden)

Other Characters

 * Cecile Horton
 * Clarissa Stein
 * David Singh
 * Guardian
 * Lily Stein
 * Nora West-Allen
 * Rob

Teams and Organizations

 * Central City Police Department
 * Department of Extranormal Operations
 * Freedom Fighters
 * Legends
 * Nazi Party
 * Schutzstaffel
 * S.T.A.R. Labs
 * Super Friends
 * Team Arrow
 * Team Flash

Objects and Concepts

 * Breach
 * CFL Quark Matter
 * Dark Arrow Suit
 * Dark Arrow's Bows and Arrows
 * Firestorm Suit
 * Firestorm Matrix
 * Quantum Splicer
 * Killer Frost Suit
 * Green Arrow Suit
 * Guardian Suit
 * Heat Gun
 * Inter-Dimensional Extrapolator
 * Kara Danvers' Glasses
 * Oliver Queen's Bow and Arrow
 * Overgirl Suit
 * Prometheus Suit
 * Reverse-Flash Suit
 * Supergirl Suit
 * Kal-El's Blanket
 * The Flash Suit
 * Waverider
 * White Canary Suit

Locations

 * Earth-1
 * Earth
 * Europe
 * England
 * North America
 * United States of America
 * Missouri
 * Central City
 * City Center
 * CC Jitters
 * University Town
 * S.T.A.R. Labs
 * Pipeline
 * Washington
 * Star City
 * Bunker
 * Earth-2
 * Earth-38
 * Earth
 * North America
 * United States of America
 * National City
 * DEO National City Headquarters
 * Earth-X
 * Earth
 * New Reich