The Loud House/My Little Pony

Version 1 (by Yay!!501)

 * Twilight Sparkle: Lisa
 * Fluttershy: Leni (Rarity can't be Leni)
 * Luna: Lori
 * Rainbow dash: Luna
 * Pinkie pie: Luan
 * Maud pie (Pinkie's sister): Lucy
 * Sweetie Belle: Lola
 * Apple Bloom: Lana
 * Scootaloo: Lynn

Version 2

 * Spike: Lincoln Loud
 * Adagio Dazzle: Lori Loud
 * Sonata Dusk: Leni Loud
 * Rainbow Dash: Luna Loud
 * Pinkie Pie: Luan Loud
 * Scootaloo: Lynn Loud
 * Maud Pie: Lucy Loud
 * Rarity: Lola Loud
 * Applejack: Lana Loud
 * Twilight Sparkle: Lisa Loud
 * Flurry Heart: Lily Loud

Version 3

 * Apple Bloom: Lincoln Loud
 * Sweetie Belle: Clyde
 * Fluttershy: Leni Loud
 * Diamond Tiara: Lola Loud
 * Scootaloo: Lana Loud
 * Rainbow Dash: Luna Loud
 * Maud Pie: Lucy Loud
 * Twilight Sparkle: Lisa Loud
 * Pinkie Pie: Luan Loud
 * Babs Seed: Lynn Loud
 * Trixie: Lori Loud
 * Pumpkin Cake: Lily Loud
 * Winona: Charles
 * Opalescence: Cliff
 * Angel: Geo
 * Owlowiscious: Walt

Version 4

 * Sweetie Belle: Lori
 * Derpy: Leni
 * Vinyl Scratch: Luna
 * Pinkie Pie: Luan
 * Rainbow Dash: Lynn
 * Applejack: Lincoln
 * Fluttershy: Lucy
 * Apple Bloom: Lana
 * Rarity: Lola
 * Twilight Sparkle: Lisa
 * Flurry Heart: Lily
 * Spike: Clyde
 * Big Mac: Bobby
 * Princess Cadence: Ronnie Anne

Version 5

 * Twilight Sparkle: Lori
 * Applejack: Leni
 * Fluttershy: Luan
 * Rainbow Dash: Lana
 * Rarity: Luna
 * Pinkie Pie: Lola
 * Spike: Gene (The Emoji Movie)
 * Princess Celestia: Rita
 * Princess Luna: Lucy
 * Shining Armor: Lincoln
 * Apple Bloom: Princess Poppy (Trolls)
 * Scootaloo: Lisa
 * Sweetie Belle: Lynn