Synopsis
A unicorn learns from a riddle-speaking butterfly that she is supposedly the last of her kind, all the others having been herded away by the monstrous 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 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.
Cast

Mia Farrow
Unicorn / Amalthea (voice)

Alan Arkin
Schmendrick (voice)

Tammy Grimes
Molly Grue (voice)

Jeff Bridges
Prince Lir (voice)

Christopher Lee
King Haggard (voice)

Angela Lansbury
Mommy Fortuna (voice)

Robert Klein
The Butterfly (voice)

Keenan Wynn
Captain Cully / Harpy (voice)

Paul Frees
Mabruk (voice)

René Auberjonois
The Skull (voice)

Theodore Gottlieb
Ruhk (voice)

Don Messick
The Cat (voice)
Jack Lester
Hunter #1 / Old Farmer / Cully's Men (voice)
Nellie Bellflower
The Tree (voice)

Ed Peck
Jack Jingley / Cully's Men (voice)
Ken Jennings
Hunter #2 / Cully's Men

Gerry Beckley
The Balladeer (voice) (uncredited)
Dewey Bunnell
The 2nd Balladeer (voice) (uncredited)
Brad Palmer
The Balladeers' Bassist / Chorus (voice) (uncredited)
More like this

My Little Pony: A New Generation

Thelma the Unicorn

The House of Magic

Voyage of the Unicorn

Bogus

Inkheart

Mia and Me: The Hero of Centopia

Nico the Unicorn

The Princess and the Goblin

Oz the Great and Powerful

The Academy of Magic

Aladdin

Tangled

Cinderella

Enchanted

The Flight of Dragons

My Little Pony: The Runaway Rainbow

Big Fish

Spellbound

Fun and Fancy Free