(1985) Back to the Future

as Emmett Brown

(1984) Star Trek III: The Search for Spock

as Cmdr. Kruge

(1989) Back to the Future Part II

as Emmett Brown

(1990) Back to the Future Part III

as Emmett Brown

(1988) Who Framed Roger Rabbit

as Judge Doom

(1995) Things to Do in Denver When You're Dead

as Pieces

(1975) One Flew Over the Cuckoo's Nest

as Max Taber

(2021) King Lear

as King Lear

(1984) The Cowboy and the Ballerina

as ---

(1993) Addams Family Values

as Uncle Fester

(2021) Next Stop, Christmas

as Ticket Agent/Conductor

(1991) The Addams Family

as Uncle Fester

(1990) DuckTales: The Movie - Treasure of the Lost Lamp

as Merlock (voice)

(2002) Interstate 60

as Ray

(1984) The Adventures of Buckaroo Banzai Across the 8th Dimension

as John Bigboote

(1983) To Be or Not to Be

as Capt. Schultz

(2002) Wish You Were Dead

as Bruce

(1999) Baby Geniuses

as Heep

(1994) Radioland Murders

as Zoltan

(1999) Alice in Wonderland

as White Knight

(1991) Suburban Commando

as Charlie Wilcox

(1994) Angels in the Outfield

as Al the Angel

(1993) Dennis the Menace

as Switchblade Sam

(1997) Quicksilver Highway

as Aaron Quicksilver

(1997) Anastasia

as Rasputin (voice)

(2001) Wit

as Dr. Harvey Kelekian

(1978) Goin' South

as Towfield

(1999) My Favorite Martian

as Uncle Martin

(1983) Mr. Mom

as Larry

(1979) The Onion Field

as Jailhouse Lawyer

(2009) Call of the Wild

as 'Grandpa' Bill Hale

(1988) Eight Men Out

as Bill Burns

(1987) Walk Like a Man

as Reggie Shand / Henry Shand

(2008) Fly Me to the Moon

as Amos (voice)

(2009) Jack and the Beanstalk

as Headmaster

(1998) The Real Blonde

as Ernst

(1995) Rent-a-Kid

as Lawrence 'Larry' Kayvey

(1989) The Dream Team

as Henry Sikorsky

(1988) Track 29

as Henry Henry

(1994) The Pagemaster

as Mr. Dewey

(1985) Clue

as Professor Plum

(2010) Piranha 3D

as Mr. Goodman

(1979) Butch and Sundance: The Early Days

as Bill Carver

(2023) Camp Hideout

as Falco

(1981) The Legend of the Lone Ranger

as Maj. Bartholomew 'Butch' Cavendish

(1999) It Came From the Sky

as Jarvis Moody

(1994) In Search of Dr. Seuss

as Mr. Hunch

(1979) The Lady in Red

as Frognose

(1994) Camp Nowhere

as Dennis Van Welker

(1998) The Animated Adventures of Tom Sawyer

as Judge Thatcher (voice)

(1998) The Ransom of Red Chief

as Sam Howard

(1993) Twenty Bucks

as Jimmy

(2003) Merry Christmas Space Case

as Narrator (voice)

(2001) Space Case

as Narrator (voice)

(2012) Piranha 3DD

as Mr. Goodman

(1999) The Emperor's Treasure

as Lord Imaru (voice)

(2010) Snowmen

as The Caretaker

The Movers

as ---

(1979) The Fantastic Seven

as Skip Hartman

(2004) Admissions

as Steward Worthy

(2011) The Chateau Meroux

as Nathan

(2001) When Good Ghouls Go Bad

as Uncle Fred Walker

(1980) The Black Marble

as Arnold's Collector

(1984) Joy of Sex

as Coach Hindenberg

(2011) InSight

as Shep

(2011) Love, Wedding, Marriage

as Dr. George

(1980) Schizoid

as Gilbert

(1977) Three Warriors

as ---

(2001) Kids World

as Leo

(2013) Sid the Science Kid: The Movie

as Dr. Bonabodon (voice)

(1990) Why Me?

as Bruno Daley

(2016) For the Love of Spock

as Commander Kruge (archive footage)

(2012) The Oogieloves in The Big Balloon Adventure

as Lero Sombrero

(1997) Changing Habits

as Theo Teagarden

(2012) Excuse Me for Living

as Lars

(2022) Spirit Halloween: The Movie

as Alex Windsor

(2012) Dead Before Dawn

as Horus Galloway

(1986) Miracles

as Harry

(1990) The Secrets of the 'Back to the Future' Trilogy

as Dr. Emmett Brown (archive footage)

(2003) The Haunted Lighthouse

as Cap'n Jack

(2011) Adventures of Serial Buddies

as Dr. Von Gearheart

(2000) Convergence

as Morley Allen

(2001) Chasing Destiny

as Jet James

(2023) Nandor Fodor and the Talking Mongoose

as Dr. Harry Price

(1997) Dinner at Fred's

as Dad

(2012) Anything but Christmas

as Harry

(1988) Roger Rabbit and the Secrets of Toon Town

as Self

(2012) Freedom Force

as Professor (voice)

(2012) Foodfight!

as Mr. Clipboard (voice)

(2012) Last Call

as Pete

(2005) Bad Girls from Valley High

as Mr. Chauncey

(1995) Mr. Payback: An Interactive Movie

as Ed Jarvis

(2014) Blood Lake: Attack of the Killer Lampreys

as Mayor Akerman

(2001) On the Edge

as Attorney Bum (segment "Happy Birthday")

(2014) Zodiac

as Harry Setag

(1996) The Right to Remain Silent

as Johnny Benjamin

(1987) Legend of the White Horse

as Jim Martin

(2014) Sin City: A Dame to Kill For

as Kroenig

(1978) Lacy and the Mississippi Queen

as Jennings

(2014) A Million Ways to Die in the West

as Doc Brown

(2008) The Tale of Despereaux

as Hovis (voice)

(2009) Santa Buddies

as Stan Cruge

(2014) The One I Wrote for You

as Pop

(2006) A Perfect Day

as Michael

(1996) Cadillac Ranch

as Wood Grimes

(2022) Who Done It: The Clue Documentary

as Self (archive footage)

(2015) 88

as Cyrus

(1982) National Lampoon's Movie Madness

as Samuel Starkman ("Municipalians")

(1977) Another Man, Another Chance

as Jesse James (uncredited)

(2015) Back in Time

as Self

(2014) Pirate's Code: The Adventures of Mickey Matson

as Grandpa Jack

(2012) Cadaver

as Cadaver

(1997) Angels in the Endzone

as Al

(1999) Man on the Moon

as Self (uncredited)

(2016) Cold Moon

as James Redfield

(2024) Guns & Moses

as Sol Fassbinder

(2015) Doc Brown Saves the World

as Emmett Brown

(2012) The Narrative of Victor Karloch

as Victor Karloch

(2015) Just in Time for Christmas

as Grandpa Bob

(2015) The Boat Builder

as Abner

(2024) Self Reliance

as Dennis Walcott

(2006) Valerie on the Stairs

as Everett Neely

(2015) Back To the Present: The Special

as ---

(2015) Keith Lemon's Back t'Future Tribute

as Self

(2016) I Am Not a Serial Killer

as Mr. Crowley

(2016) Donald Trump's The Art of the Deal: The Movie

as Doc Brown

(2016) Must See TV: An All Star Tribute to James Burrows

as Self

(2012) Say It Ain't Solo

as Himself

(1981) The Postman Always Rings Twice

as The Salesman

Amazing Stories: The Movie I

as Professor (archive footage)

(1990) The Earth Day Special

as Dr. Emmett L. Brown

(2006) Looking Back at the Future

as Himself

(2016) 50 Years of Star Trek

as Self

Meteor

as Prof. Daniel Lehman

(1982) Money on the Side

as Sergeant Stampone

(2025) Nobody 2

as David Mansell

(2017) Muse

as Bernard Rauschen

(2017) The Sound

as Clinton Jones

(1983) September Gun

as Jack Brian

(2018) Boundaries

as Stanley

(1997) Completely Cuckoo

as Self

(2017) Going in Style

as Milton Kupchak

(2009) Looking Back to the Future

as Self

(2005) Here Comes Peter Cottontail: The Movie

as Seymour S. Sassafras (voice)

(2012) Dorothy and the Witches of Oz

as The Wizard Of Oz

(1982) Pilgrim, Farewell

as Paul

(2002) Hey Arnold! The Movie

as Coroner (voice)

(2004) Car Crash: The Delorean Story

as Himself

Untitled Lani Pixels Project

as Grandpa (voice)

(2018) Making a Killing

as Lloyd Mickey

(2008) Camelot: Live from Lincoln Center

as King Pellinore

(2011) Once Upon a Time… One Flew Over the Cuckoo's Nest

as ---

(2012) The Adventures of Mickey Matson and the Copperhead Conspiracy

as Grandpa Jack

(1986) Amazing Stories

as R. Beanes

(1992) T Bone N Weasel

as Weasel

(2021) Nobody

as David Mansell

(2019) The Haunted Swordsman

as The Black Monk

(2002) The Big Time

as Doc Powers

(2010) Tales from the Future

as Self

(2018) ReRUN

as George Benson (old)

(1984) Street Hawk: The Movie

as Anthony Corrido

(2024) Man and Witch: The Dance of a Thousand Steps

as The Alchemist

(1992) Dead Ahead: The Exxon Valdez Disaster

as Frank Iarossi - Exxon

(2022) Tankhouse

as Buford

(2009) The Macabre World of Lavender Williams

as Lester (voice)

(2007) Flakes

as Willie

(2021) Queen Bees

as Arthur Lane

(2005) Arthur Hailey's Detective

as Anderson in Launderette

(2021) Senior Moment

as Sal Spinelli

(2019) That Guy... Who Was In That Thing 3: Trek Stars

as Self

(1994) The Making of 'The Pagemaster'

as Mr. Dewey - Host

(2019) Dr. Jack & Mr. Nicholson

as Self

(2021) The Tender Bar

as Grandpa Maguire

(1991) Back to the Future: The Ride

as Doctor Emmet Brown

(2009) A Very Sunny Christmas

as Santa Claus John #2 (uncredited)

(2004) The Tony Danza Show

as Self

(2005) Numb3rs

as ---

(2008) Fringe

as Roscoe Joyce

(2004) I Dream

as Professor Toone

(1997) King of the Hill

as Smitty (voice)

(2000) Ed

as Burt Kiffle

(1996) Spin City

as Owen Kingston

(2000) Malcolm in the Middle

as Walter

(1981) Best of the West

as The Calico Kid

(1985) Street Hawk

as Anthony Corrido

(2005) Masters of Horror

as ---

(2002) Cyberchase

as Hacker (voice)

(2018) A.P. Bio

as Melvin

(2014) Buenas noches

as Self

(2005) Stacked

as Harold March

(2003) Tremors

as Dr. Cletus Poffenberger

(2021) Expedition: Back To The Future

as Self

(1991) Back to the Future

as Emmett Brown

(2004) Clubhouse

as Lou Russo

(1978) The Word

as Hans Bogardus

(1995) Deadly Games

as Sebastian Jackal

(2007) The Alan Titchmarsh Show

as Self

(2019) The Mandalorian

as Commissioner Helgait

(1980) Semi-Tough

as ---

(2009) Live from Studio Five

as Self

(2011) The Witches of Oz

as The Wizard of Oz

(2009) Meteor

as Prof. Daniel Lehman

(1975) Saturday Night Live

as Self - Cameo (uncredited)

(1978) Taxi

as Reverend Jim Ignatowski

(2006) Psych

as Martin Kahn

(2007) Chuck

as Dr. Leo Dreyfus

(1999) The West Wing

as Professor Lawrence Lessig

(1985) Amazing Stories

as Professor B.O.Beanes

(1956) Tony Awards

as Self - Performer (uncredited)

(2009) Knights of Bloodsteel

as Tesselink

(1996) Spin City

as Owen Kingston (archive footage)

(2007) The Big Bang Theory

as Theodore

(2021) The Center Seat: 55 Years of Star Trek

as Self

(2015) 12 Monkeys

as The Missionary

(2015) 12 Monkeys

as The Missionary (uncredited)

(2015) 12 Monkeys

as Zalmon Shaw / The Missionary

(2007) Head Case

as Self

(2013) The Michael J. Fox Show

as Principal McTavish

(1982) Cheers

as Phillip Semenko

(2018) The Conners

as Lou Vitore

(1993) Fallen Angels

as Continental Op

(2010) R. L. Stine's The Haunting Hour

as Grandpa Walt Montgomery

(2018) James Cameron's Story of Science Fiction

as Self

(2020) Stars in the House

as Self

(2018) A Million Little Things

as Christopher Lloyd

(2014) Over the Garden Wall

as The Woodsman (voice)

(2024) Knuckles

as Chief Pachacamac (voice)

(1989) The Simpsons

as Reverend Jim Ignatowski (voice)

(2014) The Real History of Science Fiction

as Himself

(2020) Reunited Apart

as Self

(1975) Barney Miller

as Arnold Scully

(1975) Barney Miller

as Vincent Carew

(2001) Law & Order: Criminal Intent

as Carmine

(2003) NCIS

as Joseph Smith

(1978) Taxi

as Reverend Jim 'Iggy' Ignatowski

(2014) Over the Garden Wall

as The Woodsman