A nosy reporter wants to find out all she can about Dr. Seuss, aka Ted Geisel, and gets told the real facts by several of his characters, with large snippets of his stories and songs interspersed.

Kathy Najimy
as Kathy Lane

Matt Frewer
as The Cat in the Hat

Christopher Lloyd
as Mr. Hunch

Patrick Stewart
as Sergeant Mulvaney

Billy Crystal
as The Voice of America (voice)

Robin Williams
as The Father

Howie Mandel
as Sam-I-Am (voice)

Andrea Martin
as The Ad Woman

David Paymer
as The Ad Man

J.D. Daniels
as Marco (segment "Mulberry Street")