Crisis on Earth-X, Part 3

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.

Main/Featured Characters

 * Barry Allen/The Flash
 * Iris West
 * Caitlin Snow/Killer Frost
 * Cisco Ramon
 * Harrison Wells
 * Kara Zor-El/Kara Danvers/Supergirl
 * Alex Danvers
 * Oliver Queen/Green Arrow
 * Felicity Smoak
 * Dinah Drake/Black Canary
 * Sara Lance/White Canary
 * Martin Stein/Firestorm
 * Jefferson Jackson/Firestorm
 * Winn Schott
 * Ray Terrill/The Ray
 * Leo Snart

Villains

 * Oliver/Dark Arrow
 * Kara/Overgirl
 * Eobard Thawne/Harrison Wells/Reverse-Flash
 * Metallo
 * Unnamed sturmbannführer
 * Red Tornado

Other Characters

 * Unnamed

Objects

 * The Flash suit
 * Killer Frost suit
 * Supergirl suit
 * Green Arrow suit
 * Black Canary suit
 * White Canary suit
 * Firestorm suit
 * Quantum splicer
 * Firestorm Matrix
 * The Ray suit
 * Citizen Cold suit
 * Dark Arrow suit
 * Overgirl suit
 * Reverse-Flash suit
 * Temporal gateway
 * Wellenreiter

Weapons

 * Bow and arrow
 * Guns
 * Cold gun

Events

 * Nazi invasion

Locations

 * Earth-X
 * Earth-1
 * Central City
 * S.T.A.R. Labs
 * Star City
 * Freedom Fighters' base

Trivia

 * This episode is the first episode to not feature Jesse L. Martin as Joe West.