Hans Conried

as Self (archive footage)

as Mr. Tibbles (voice)

as Dr. Heffel

as Thorin (voice)

as The Grinch / Narrator (voice)

as Prof. Whatley

as Narrator / North-Going Zax / South-Going Zax (voice)

as King Azaz / The MathemaGician (voice)

as Narrator / Horton / Dr. H. Hoovey (voice)

as Tackleton (voice)

as Prof. Mulerr

as Kinsley Kross

as The Wicked Wazir (voice)

as Mr. Wright

as Col. Matoff

as Prosecutor

as Dr. Jess Rogers

as Life Magazine Photographer

as Mr. Shellhammer

as Francois (uncredited)

as Thimblerig

as Tom Jefferson / Crook (voice)

as Dr. Terwilliker

as Kerry West

as Narrator (voice)

as Captain Hook / Mr. Darling (voice)

as Eustace

as Robert Henried

as Mr. Sparrow

as Norbert Gillespie

as Jean - Maitre D'

as Harrison I. Keath

as Prof. Kropotkin

as Taxidermist (voice)

as Wally Walrus (voice)

as Jourdain

as Gregg Stone

as Swami magician

as Dr. Graf

as Vienna Tailor's Fitter (uncredited)

as Louie (uncredited)

as Quincey W. Marriot (Uncredited)

as Second Gestapo Agent

as Herman, Police Sketch Artist (uncredited)

as Mr. Delmonico, Stage Manager