From a riddle-speaking butterfly, a unicorn learns that she is supposedly the last of her kind, all the others having been herded away by the Red Bull. The unicorn sets out to discover the truth behind the butterfly's words. She is eventually joined on her quest by Schmendrick, a second-rate magician, and Molly Grue, a now middle-aged woman who dreamed all her life of seeing a unicorn. Their journey leads them far from home, all the way to the castle of King Haggard.
Mia Farrow
as Unicorn / Amalthea (voice)
Alan Arkin
as Schmendrick (voice)
Tammy Grimes
as Molly Grue (voice)
Jeff Bridges
as Prince Lir (voice)
Christopher Lee
as King Haggard (voice)
Angela Lansbury
as Mommy Fortuna (voice)
Robert Klein
as The Butterfly (voice)
Keenan Wynn
as Captain Cully / Harpy (voice)
Paul Frees
as Mabruk (voice)
René Auberjonois
as The Skull (voice)
Theodore Gottlieb
as Ruhk (voice)
Don Messick
as The Cat (voice)
