A retelling of my first (failed) attempt at a Canterlot Wedding AU known as Sympathy For Lady Vengeance, this new story combines the narrative and thematic elements of The Power of the Equinox by Shaded Blood, The Forgotten and Exiled by Slice141, and The Twilight Citadel by Pyrestrike. The main story is akin to The Magnificent Seven (1960), while the sense of scope is reminiscent of Star Wars (1977) and Lawrence of Arabia (1962).

When Twilight is banished from the wedding, she discovers an even bigger threat approaching on the horizon known only as The Storm King. Because her friends and family don't believe it her in the slightest, she decides to unite an alliance to fight the threat before it even arrives. However, they are eventually forced to travel beyond Equestria in search of aid. So, A Canterlot Wedding Meets My Little Pony: The Movie (2017).

The central cast is listed below:
― "The Team":
• Twilight Sparkle (voiced by Tara Strong): The leader of the group, Twilight Sparkle is the (former) apprentice of Princess Celestia who attempts to save Equestria from the forces of evil.
• Sunset Shimmer (voiced by Rebecca Shoichet): The second-in-command, Sunset Shimmer is the first (former) apprentice of Princess Celestia who is forced to assist her former master's current apprentice save the world.
• Starlight Glimmer (voiced by Kelly Sheridan): A pony who strives for conformity over individualism, Starlight Glimmer decides to help Twilight in hopes of stealing her cutie mark.
• Trixie Lulamoon (voiced by Kathleen Barr): A street magician whose tricks may seem more cunning than they appear, Trixie seeks fame and joins Twilight's team in order to do so. Of course, fate is a harsh mistress; when she meets Starlight, she must chose fame...or friendship.
• Photo Finish (voiced by Tabitha St. Germain): A famous photographer from Manehattan,
Photo Finish, much like Trixie before her, seeks to elevate her fame, but she soon gets more than she bargained for.
• Lightning Dust (voiced by Britt Irvin): An aspiring Wonderbolt with a penchant for competition and recklessness, Lightning Dust seeks not only to send her fame skyrocketing, but to become the strongest pony of them all. Of course, this proves easier said than done.
• Apple Cobbler (voiced by Ashleigh Ball): A baker and former cater for the wedding reception alongside Applejack, Apple Cobbler is the only pony who genuinely accepts Twilight's call for help.
― "The Supporting Cast":
• Tempest Shadow (voiced by Emily Blunt): The loyal and fierce henchman to the Storm King, Tempest Shadow stands beside and serves him in the hopes of repairing her broken horn.
• Grubber (voiced by Michael Peña): A wisecracking hedgehog-like creature, Grubber serves as the cohort of Tempest Shadow, bowing to her every whim.
• The Storm King (voiced by Liev Schreiber): The absolutist, satyr-like creature who can control the weather with his staff, The Storm King is not the main antagonist of the story, but instead the Greater Scope Villain of the saga.
• Dusk Shine (voiced by Tom Holland): A young unicorn who is mysteriously granted with Pegasus wings, Dusk Shine is a crew member of Captain Celaeno after his family disowns him.
• Dawn Cracker (voiced by Olivia Holt): A young unicorn who is a big fan of Twilight Sparkle, Dawn Cracker bears an uncanny resemblance to her idol and is more than happy when she requests her assistance on saving the world.
• Captain Colleen Celaeno (voiced by Karen Gillan): A humanoid parrot and the apathetic captain of a band of pirate misfits, Captain Colleen Celaeno may be much more jaded than her older sister Cataleya...explaining her refusal to help Twilight Sparkle at first glance.
• Catrina (voiced by Judy Greer): An anthropomorphic alley cat and cunning yet goodhearted con artist, Catrina has trouble stepping away from her criminal influence. She partially (and we mean mostly) blames her problem on her former flame Nick.

Yes, some of the characters from the movie don't actually appear, but they are mentioned and will in later installments. Also, fair warning: some of the characters may use firearms.