Thurl Ravenscroft, the voice of Tony the Tiger and singer of the original ballad, "You're a Mean One, Mr. Grinch!" from the 1966 TV special, narrates here.
Uses Merrie Melodies music instead of Looney Tunes music.
Final Daffy Duck cartoon directed by the legendary Chuck Jones, 57 years after his directoral debut.
Frank Gorshin, aka TV Batman's nemesis Riddler, returns to do voices here.