Rv (2006) as Bob Munro
A Prairie Home Companion (2006) as Himself
The Night Listener (2006) as Gabriel Noone
Man Of The Year (2006) as Tom Dobbs
Happy Feet (2006) as Ramon
Night At The Museum (2006) as Teddy Roosevelt
Robots (2005) as Fender
House Of D (2005) as Pappass
The Aristocrats (2005)
The Final Cut (2004) as Alan Hakman
Noel (2004) as Charlie--uncredited
One Hour Photo (2002) as Seymour "Sy" Parrish
Death To Smoochy (2002) as Randolph Smiley -- "Rainbow Rudolph" "172563
Insomnia (2002) as Walter Finch
A.I. Artificial Intelligence (2001) as Voice of Dr. Know
Jakob The Liar (1999) as Jakob
Get Bruce! (1999)
Bicentennial Man (1999) as Andrew
What Dreams May Come (1998) as Chris Nielsen
Patch Adams (1998) as Hunter "Patch" Adams
Fathers' Day (1997) as Dale Putley
Flubber (1997) as Professor Phillip Brainard
Good Will Hunting (1997) as Professor Sean McGuire
Deconstructing Harry (1997) as Mel
The Secret Agent (1996) as The Professor
The Birdcage (1996) as Armand Goldman
Jack (1996) as Jack Powell
Hamlet (1996) as Osric--uncredited
Aladdin And The King Of Thieves (1996) as Blue Genie
Nine Months (1995) as Dr. Kosevich
Jumanji (1995) as Alan Parrish
Mrs. Doubtfire (1993) as Daniel Hillard/Mrs. Iphegenia Doubtfire
Being Human (1993) as Hector
Aladdin (1992) as Genie
Ferngully: The Last Rainforest (1992) as Batty Koda
Shakes The Clown (1992) as Mime Jerry
Toys (1992) as Leslie Zevo
The Fisher King (1991) as Parry
Dead Again (1991) as Doctor Cozy Carlisle--uncredited
Hook (1991) as Peter Banning/Peter Pan
Cadillac Man (1990) as Joey O'Brien
Awakenings (1990) as Dr. Malcolm Sayer
Dead Poets Society (1989) as John Keating
The Adventures Of Baron Munchausen (1989) as King of the Moon
Good Morning, Vietnam (1987) as Adrian Cronauer
Dear America: Letters Home from Vietnam (1987)
The Best of Times (1986) as Jack Dundee
Club Paradise (1986) as Jack Moniker
Seize The Day (1986) as Tommy Wilhelm
Moscow On The Hudson (1984) as Vladimir Ivanoff
The Survivors (1983) as Donald Quinelle
The World According To Garp (1982) as T.S. Garp
Popeye (1980) as Popeye
Children Of Babylon (1980) as Boys on Beach

Freedom: A History of Us as |Freedom: A History of Us (Voice"
Friends
Happy Days as Mork
Larry Sanders
Late Show with David Letterman
Life with Bonnie as Kevin Powalski
Mork & Mindy as Mork
Richard Pryor