Michael Gross

as Alfred Mosby

as Walter Gillis

as Steven Keaton (voice)

as Arthur Esterman

as Burt Gummer

as Michael

as Lloyd Ventrix (voice)

as Rob Austin

as Burt Gummer

as Cody Blair

as Dr. Rivkin

as Jack Carter

as Tom Endecott

as Elder Elf Abe

as Burt Gummer

as Carl Braddock

as Warren McGinnis (voice)

as Peter Barrister

as Hiram Gummer

as Burt Gummer

as Burt Gummer

as Dr. Ezra Kaplan

as Father Nicholas McClinton

as Jeff

as Charles Webb

as Mr. Volpe

as Mr. Hardin

as Dr. Peterson

as Dr. Jay Marshall

as Dr. Randy

as Principal Blake

as Steven Keaton

as Burt Gummer

as Professor Stanley Hurst

as Stan

as Warren McGinnis (voice)

as Gordon

as Brandon

as Edward LeMonde

as Don Newmark

as Okba (voice)

as Arthur Thursby

as Ted 'Buzz' Killman

as Narrator

as Jon Porter

as Mr. Pierson

as Robin

as Dr. Frank Reno

as Murray

as Walter Kringle

as Mr. McCarthy

as Ted

as Ron Wright

as Burt Gummer

as Professor Frank Ingram

as Father Sherman McKigney

as Robert

as Narrator (voice)

as Huck Jingles

as Harry

as Grandpa Norman

as Tom

as Dick

as Duckmus

as Nick Claus

as Dr. Ziegler

as William Russell Matix

as Dr. Molina

as Leslie Jacobson

as Kevin Mulligan

as Lothar

as Brian Kemp

as Ben Horner

as Professor Tucker

as Anthony Jacobs

as Alfred

as King Arthur

as Steven Keaton

as Sol Silverman

as Graham Moore

as Agent Richard Mayberly

as Gilchrist

as Talbot

as Howard

as Mr. Trantham

as Jim Seevey

as Ben Brannigan

as Steven Keaton

as Lt. Peter Byrnes

as Lt. Peter Byrnes

as Himself

as Ben McAdams

as Dr. Howard Bruenn

as George Phipps

as Gordon Powell

as Self

as Tom Lindsay

as Lawrence Sr.

as Bob Bauer

as Tom Williams

as Jack Wolfe

as Self

as Manny Braddock

as Paul Fleiss

as Chairman

as Don Scott

as James Troth

as Murray

as Julius 'J.J.' Jacobson

as self

as Narrator (voice)

as Governor Appalachia