Scooby-Doo/Dr. Seuss

Cast

 * Scooby-Doo as Sam-I-Am
 * Shaggy as The Cat in the Hat
 * Fred as The Lorax
 * Daphne as Cindy Lou Who
 * Velma as Sarah Hall-Small
 * Scrappy Doo as Little Cat A
 * Ghost as Yertle the Turtle
 * Villain as The Grinch
 * and more