Dudley Moore

Patch

John Lithgow

B.Z.

David Huddleston

Santa Claus

Burgess Meredith

Ancient Elf

Judy Cornwell

Anya Claus

Jeffrey Kramer

Towzer

Christian Fitzpatrick

Joe

Carrie Kei Heim

Cornelia

Anthony O'Donnell

Puffy

Melvyn Hayes

Goober

Don Estelle

Groot

Tim Stern

Boog

Christopher Ryan

Vout

Peter O'Farrell

Honka

Dickie Arnold

Goobler

Aimée Delamain

Storyteller

Dorothea Phillips

Miss Tucker

John Hallam

Grizzard, Chauffeur

Morgan Deare

BZ's Lawyer (uncredited)

Caroline John

Village Woman (uncredited)

Jill Goldston

Photographer In Court (uncredited)

Stuart Milligan

Senator (uncredited)

Nicole Appleton

Little Girl in Ballet Class (uncredited)

Shannon Spruill

Bratty Kid in Ballet Class (uncredited)