The Cat In The Hat as Igor Norval the Fish as Dr. Holzuwurm Joey as King Malbert Sarah Hall-Small as Eva Mack the Turtle as Brain Sam-I-Am as Scramper Mr. Brown as Dr. Glickenstein The White Tufted Bird as Blind Woman/Killseum Fan 1 Vlad Vladikoff as Blind Orphan 1 Flying Dutchman (from Spongebob Squarepants) as Dr. Schadenfreude The Lorax as Dr. Holzuwurm's Igor Sylvester McMonkey McBean as Announcer/Royal Guard 2 Jane Kangaroo as Jaclyn/Heidi Horton the Elephant as Dr. Herzschlag Little Cat Fleep as Sonic (Cameo) Morton the Elephant Bird as Tails (cameo)