Cast[]
- Cleveland as The Cat In The Hat
- Brian as Thing 1
- DeBrian as Thing 2
- Lester as Norval The Fish
- Quagmire (from Family Guy) as Conrad
- Rallo as Little Cat H
- Walt as Little Cat N
- Julius as Little Cat Z
- Momstabba as The Grinch
- Roberta as Cindy Lou Who
- Cleveland Jr. as Sam-I-Am
- Holt as Guy-Am-I
- Herbert (from Family Guy) as Mr Brown
- Gabriel Friedman as The Lorax
- Donny as The Once-Ler
- Tim as Horton The Elephant
- Vern (from Family Guy) as Fox In Socks
- Johnny (from Family Guy) as Mr. Knox
- Wally Farquhare as Yertle The Turtle
- Terry Kimple as Mack the Turtle
- Dr. Fish as Thidwick The Moose
- Donna as Sarah Hall-Small
- Raymond as Matthew
- Ernie as Binkham
- Jane as Jane Kangaroo
- Clevetron as Vlad Vladikoff
- Franz Gutentag & Mr. Washee Washee (from Family Guy) as North-Going Zax & South-Going Zax
- Mayor Adam West (from Family Guy) as King Derwin