Eric Idle (The Cat in the Hat), Janine LaManna (Gertrude McFuzz), Michele Pawk (Mayzie LaBird), Kevin Chamberlin (Horton the Elephant), Eric Devine (General Genghis Kahn Schmitz), Alice Playten (Mrs. Mayor), Sharon Wilkins (Sour Kangaroo), Stuart Zagnit (The Mayor of Whoville), Eric Jordan Young (Wickersham), Ruth Williamson, Madeleine Doherty, Tracy Nicole Chapman, Victor Trent Cook, David Garrison, Ann Harada, Lovette George, Leon Williams, Jason Fuchs, Eddie Korbich, Joy Hermalyn, David Lowenstein