I watched "The Lorax" on YouTube last night.
It's always been one of my favorite Dr. Seuss books.
There are really only two characters with developed personalities, so I think..
The Lorax: ENFJ
The Once-ler: ENTJ
Very strong F/T conflict throughout the story.. T wins but F was the one who should have won.
YouTube - The Lorax (Part 1)
There are six parts for those who are interested- it's only thirty minutes long.