Spirit Halloween

2022

Next Stop, Christmas (TV)

2021

Nobody

David Mansell

2021

Boundaries

Stanley

2018

Cold Moon

James Redfield

2016

Going in Style

Milton Kupchak

2017

I Am Not a Serial Killer

Mr. Crowley

2016

Donald Trump's The Art of the Deal: The Movie

Doc Brown

2016

Just in Time for Christmas

Grandpa Bob

2015

Back in Time

Himself

2015

The Adventures of Mickey Matson and the Copperhead Treasure

Grandpa Jack

2015

The Chateau Meroux

Nathan

2011

Sin City: A Dame to Kill For

Kroenig

2014

Blood Lake: Attack of the Killer Lampreys

Mayor Akerman

2014

Granite Flats (TV)

2013

Foodfight!

Mr. Clipboard

2012

Adventures of Serial Buddies

Dr. Von Gearheart

2011

Piranha 3DD

Mr. Goodman

2012

The Witches of Oz (TV)

2011

Love, Wedding, Marriage

Dr. George

2011

InSight

Shep

2011

Snowmen

The Caretaker

2010

R.L. Stine's The Haunting Hour (TV)

2010

Piranha 3D

Mr. Carl Goodman

2010

Jack and the Beanstalk

Headmaster

2009

Meteor (TV)

2009

Call of the Wild

'Grandpa' Bill Hale

2009

Knights of Bloodsteel (TV)

2009

The Tale of Despereaux

Hovis

2008

Fly Me to the Moon

Amos (voice)

2008

Bad Girls from Valley High

Mr. Chauncey

2005

Flakes

Willie

2007

A Perfect Day

Michael

2006

Stacked (TV)

Harold March

2005

Clubhouse (TV)

2004

Interstate 60: Episodes of the Road

Ray

2002

Hey Arnold! The Movie

Coroner

2002

Quicksilver Highway

Aaron Quicksilver

1997

When Good Ghouls Go Bad

Uncle Fred Walker

2001

Wit

Dr. Harvey Kelekian

2001

Alice in Wonderland

1999

My Favorite Martian

Uncle Martin

1999

Baby Geniuses

Heep

1999

The Real Blonde

Ernst

1997

Anastasia

Rasputin

1997

Things to Do in Denver When You're Dead

Pieces

1995

Rent-a-Kid

1995

Angels in the Outfield

Al the Boss Angel

1994

The Pagemaster

Mr. Dewey

1994

Radioland Murders

1994

Camp Nowhere

Dennis Van Welker

1994

Addams Family Values

Uncle Fester Addams

1993

Dennis the Menace

Switchblade Sam

1993

Suburban Commando

Charlie Wilcox

1991

The Addams Family

Uncle Fester Addams

1991

Back to the Future (TV)

1991

DuckTales the Movie: Treasure of the Lost Lamp

Merlock

1990

Why Me?

Bruno Daley

1990

Back to the Future Part III

1990

The Dream Team

Henry Sikorsky

1989

Back to the Future Part II

Dr. Emmett Brown

1989

Who Framed Roger Rabbit

Judge Doom

1988

Track 29

Henry

1988

Walk Like a Man

Reggie Shand

1987

Miracles

Harry

1986

Clue

Professor Plum

1985

Back to the Future

Dr. Emmett Brown

1985

The Adventures of Buckaroo Banzai Across the 8th Dimension

John Bigbooté

1984

Joy of Sex

Coach Hindenberg

1984

To Be or Not to Be

Capt. Schultz

1983

Mr. Mum

Larry

1983

The Legend of the Lone Ranger

Maj. Bartholomew 'Butch' Cavendish

1981

Schizoid

Gilbert

1980

Taxi (TV)

Reverend Jim Ignatowski

1978

The Onion Field

Jailhouse Lawyer

1979

The Lady in Red

Frognose

1979

Goin' South

1978

Butch and Sundance: The Early Days

Bill Carver (as Chris Lloyd)

1979