Suggestions by @dandandandandan

Courage the Cowardly Dog (Character)

as Pink in Fictional Characters by Colours of the Rainbow

Moon Knight (Marvel Cinematic Universe)

as White in Fictional Characters by Colours of the Rainbow

Joy (Inside Out)

as Yellow in Fictional Characters by Colours of the Rainbow

Sonic the Hedgehog (Character)

as Blue in Fictional Characters by Colours of the Rainbow

Jack Skellington

as Christmas in Fictional Characters Sorted by Hyperfixations, Obsessions and Interests

Luna Loud

as Guitar in Fictional Characters Sorted by Hyperfixations, Obsessions and Interests

Rosita

as Guitar in Fictional Characters Sorted by Hyperfixations, Obsessions and Interests

Lucy Loud

as The Supernatural in Fictional Characters Sorted by Hyperfixations, Obsessions and Interests

Edna Mode

as Fashion in Fictional Characters Sorted by Hyperfixations, Obsessions and Interests

Two-Face (Harvey Dent)

as Melting Man in Nightmare Before Christmas (with Batman characters)

Ventriloquist

as Mr. Hyde in Nightmare Before Christmas (with Batman characters)

Dee Dee Twins

as Witches in Nightmare Before Christmas (with Batman characters)

Enchantress (DC Comics)

as Shock in Nightmare Before Christmas (with Batman characters)

Deadshot (Floyd Lawton)

as Lock in Nightmare Before Christmas (with Batman characters)

Captain Boomerang

as Barrel in Nightmare Before Christmas (with Batman characters)

Solomon Grundy (Cyrus Gold)

as Behemoth in Nightmare Before Christmas (with Batman characters)

Scarecrow

as Oogie Boogie in Nightmare Before Christmas (with Batman characters)

Batman

as Santa in Nightmare Before Christmas (with Batman characters)

Dr. Hugo Strange

as Dr. Finklestein in Nightmare Before Christmas (with Batman characters)

🐊Killer Croc🐊

as Wolfman in Nightmare Before Christmas (with Batman characters)