Suggestions by @caitlinfrost

Tamatoa

as Smaug in Lord of the Rings (With Disney Characters)

Fa Zhou (Mulan)

as Theoden in Lord of the Rings (With Disney Characters)

Ling (Mulan)

as Merry Brandybuck in Lord of the Rings (With Disney Characters)

Yao (Mulan)

as Gimli in Lord of the Rings (With Disney Characters)

Chien Po

as Bombur in Lord of the Rings (With Disney Characters)

Mufasa

as Elrond in Lord of the Rings (With Disney Characters)

King Triton

as Elrond in Lord of the Rings (With Disney Characters)

LeFou

as Pippin Took in Lord of the Rings (With Disney Characters)

Mushu

as Pippin Took in Lord of the Rings (With Disney Characters)

Peter Pan (Disney Character)

as Merry Brandybuck in Lord of the Rings (With Disney Characters)

Pumbaa

as Pippin Took in Lord of the Rings (With Disney Characters)

Timon

as Merry Brandybuck in Lord of the Rings (With Disney Characters)

Shan Yu

as The Witch King of Angmar in Lord of the Rings (With Disney Characters)

Oogie Boogie

as The Witch King of Angmar in Lord of the Rings (With Disney Characters)

Hades (Disney)

as Sauron in Lord of the Rings (With Disney Characters)

Dr. Facilier (The Shadow Man)

as Saruman in Lord of the Rings (With Disney Characters)

Judge Claude Frollo

as Grima Wormtongue in Lord of the Rings (With Disney Characters)

Gaston LeGume

as Grima Wormtongue in Lord of the Rings (With Disney Characters)

Grandmother Willow

as Treebeard in Lord of the Rings (With Disney Characters)

Nala

as Arwen Evenstar in Lord of the Rings (With Disney Characters)