Cast[]
- Jimmy Neutron as The Cat in the Hat
- Carl Wheezer as Sam-I-Am
- Sheen Estevez as Norval the Fish
- Cindy as Sarah Hall-Small
- Libby as Cindy Lou Who
- Bolbi as Young Cat in the Hat
- Goddard as Little Cat Fleep
- Nick as The Lorax
- Tee as The Birthday Bird
- Zixs as Mr. Knox
- Travaltron as Fox in Socks
- King Goobot as Vlad Vladikoff
- Ooblar as The Grinch
- Beautiful Gorgeous as Jane Kangaroo
- Grandma Taters as Pam-I-Am
- Jimmy's Dad as Mack the Turtle
- Jimmy's Mom as The White-Tufted Floozle Bird
- Sheen's Dad as Joey
- Sheen's Mom as Aunt Myrtle
- Carl's Dad as Horton the Elephant
- and more