Mane Six: Fellowship of the Rings

Fluttershy: Legolas

Twilight: Frodo

Applejack: Aragorn

Shining Armor: Gimli

Rarity: Gandolf

Pinkie: Mary

Rainbow Dash: Pippin

Discord: Sarun

Babs: Golem

Celestia: Bilbo Bagens

Trixi: Boromir

Spike: Sam