Cast

• Mike Myers — The Cat
• Alec Baldwin — Larry Quinn
• Kelly Preston — Joan Walden
• Dakota Fanning — Sally Walden
• Spencer Breslin — Conrad Walden
• Sean Hayes — Mr. Humberfloob / Voice of the Fish
• Amy Hill — Mrs. Kwan
• Paris Hilton — Ginny
• Steven Anthony Lawrence — Dumb Schweitzer
• Norman Fessler — "The Mailman"
• Danielle C. Ryan — Thing One
• Brittany Oaks — Thing Two
• Talia-Lynn Prairie — Thing Two
• Christina Kirkman — Girl at Party
• Frank Welker — Nevins (voice)
• Dan Castellaneta — Thing One / Thing Two (voice)