The Dreamer of Oz: The L. Frank Baum Story is a 1990 American made-for-television biographical film starring John Ritter as Lyman Frank Baum, the author who wrote the 1900 novel The Wonderful Wizard of Oz and thirteen other Oz books. Also starring in it were Annette O'Toole as Baum's supportive wife, Maud, and Rue McClanahan as Baum's tough mother-in-law, Matilda Gage.