Suggestions by @thecrimsonpaw

Giselle Fernandez

as "The Next Villain." in My Little Pony

Trixie Lulamoon

as "The Next Villain." in My Little Pony

Spoiler

as "The Next Villain." in My Little Pony

Mighty Morphin Power Rangers

as Next Movie in My Little Pony

Phil Lord and Christopher Miller

as Director in My Little Pony

Jason Lee Scott/Red Mighty Morphin Ranger

as "It's Morphin Time!" in My Little Pony

Trini Kwan/Yellow Mighty Morphin Ranger

as "It's Morphin Time!" in My Little Pony

Billy Cranston/Blue Mighty Morphin Ranger

as "It's Morphin Time!" in My Little Pony

Kimberly Hart

as "It's Morphin Time!" in My Little Pony

Zack Taylor/Black Mighty Morphin Ranger

as "It's Morphin Time!" in My Little Pony

Spoiler

as "It's Morphin Time!" in My Little Pony

Spoiler

as "Discord's Redemption." in My Little Pony

Miranda Cosgrove

as "And Then There Were Six..." in My Little Pony

Twilight Sparkle

as "And Then There Were Six..." in My Little Pony

Spoiler

as "And Then There Were Six..." in My Little Pony

Spoiler

as "I knew I shouldn't have trusted you, Discord!" in My Little Pony

Kathleen Barr

as Queen Chrysalis in My Little Pony

John de Lancie

as Discord in My Little Pony

Cristina Valenzuela

as Princess Luna in My Little Pony

Nicole Oliver

as Princess Celestia in My Little Pony