An American film and television actor. He is a character actor with numerous brief appearances on television and films, usually noted for his unusual appearance. He has played many bit parts in movies directed by his brother, actor-turned-director Ron Howard. He is also the uncle of actress Bryce Dallas Howard.
Description above from the Wikipedia article Clint Howard, licensed under CC-BY-SA, full list of contributors on Wikipedia.
Movies
Austin Powers: International Man of Mystery
Radar Operator
The Wraith
Rughead
Halloween
Doctor Koplenson
Cocoon
John Dexter
The Waterboy
Paco
Senior Skip Day
Lionel Huffer
Super Capers
Mugger
100 Women
Mr. Willens
House of the Dead
Salish
Edtv
Ken
Blackwoods
Greg / Motel Clerk
Addams Family Reunion
Dogcatcher
Frost/Nixon
Lloyd Davis
Beethoven's 5th
Owen Tuttle
How the Grinch Stole Christmas
Whobris
The Jungle Book
Junior (voice)
Rock 'n' Roll High School
Eaglebauer
Fist of the North Star
Stalin
BloodRayne: The Third Reich
Doctor Mangler
Ticks
Jarvis Tanner
Gung Ho
Paul
Holyman Undercover
Roy Sr.
Night Shift
Jefferey
Cheyenne Warrior
Otto Nielsen
Ice Cream Man
Ice Cream Man / Gregory Tudor
Eat My Dust
George Poole Jr.
Carnosaur
'Slim' Friar
Big Bad Wolf
Fulton Chaney
Evilspeak
Stanley Coopersmith
Blubberella
Doctor Mangler
Leprechaun 2
The Tourist
End of the Line
Les Sullivan
Alabama Moon
Constable Sanders
Ping!
Stu
Silent Night, Deadly Night 5: The Toy Maker
Ricky
A Christmas Too Many
Todd
Church Ball
Gene Jensen
Not Like Us
Wede
Silent Night Deadly Night 4: Initiation
Ricky
Disturbed
Brian
Assault on Wall Street
Chuck
Sparks
Gordon Eldridge
Baby Face Nelson
Asst. Bank Manager
Arthurs Quest
Mr. Whitney
Planet Ibsen
Last Call
George
Cards, Cads, Guns, Gore, and Death...
Card Player #3
The Red Pony
Jody Tiflin
Sand Castles
Todd Carlson
The Rocketeer
Mark
Santa with Muscles
Hinkley
The Church
Alexander James / The Spirit
Foreign Exchange
Long Larry
Rattled
Andy Parsons
Guys and Girls Can't Be Friends
Gus
Huff
Karl
Play the Game
Dick Mitchell
Cotton Candy
Corky MacPherson
B.O.R.N.
Jerry
Apollo 13
Sy Liebergot - EECOM White
Cinderella Man
Referee
Parenthood
Lou
The Funhouse Massacre
Taxidermist
Body Chemistry II: Voice of a Stranger
Larabee
Curious George 2: Follow That Monkey!
Farmer Dan (voice)
An Eye for an Eye
Jo-Hi Quince
Searching for Haizmann
Franciscus Abbot
Backdraft
Ricco, Pathologist
Body Armor
Hutch
The Many Adventures of Winnie the Pooh
Roo (Honey Tree and Blustery Day) (voice)
The Rapsittie Street Kids: Believe in Santa
Tug (voice)
The Profane Exhibit
Bob (segment "Basement")
Humanoids from the Deep
Deputy
Big Guy
Mr. Bennett
Dillinger and Capone
Bobo
UnConventional
Self
The Lords of Salem
Carlo (uncredited)
Barb Wire
Schmitz
Mad Families
Gravy
Night at the Museum: Battle of the Smithsonian
Air and Space Mission Control Tech #1
Night Club
Cliff
The Missing
Sheriff Purdy
Austin Powers in Goldmember
Johnson
The Dilemma
Herbert Trimpy
Twisted Love
Gardener
Solo: A Star Wars Story
Ralakili
Curious George
Balloon Man (voice)
A Plumm Summer
Binky the Clown
The Dentist 2
Mr. Toothache
Street Corner Justice
Rapist
I Am Stamos
Clint Howard
Salty
Tim Reed
The Paper
Ray Blaisch
Austin Powers: The Spy Who Shagged Me
Radar Operator Peters
How to Eat Fried Worms
Uncle Ed
3 from Hell
Mr. Baggy Britches
Little Nicky
Nipples
Grand Theft Auto
Ace
Clint Howard Reboots Pippi Longstocking with Milla Jovovich and Fred Willard
Clint
Puppets
The Puppet
Unhook the Stars
Gus
Comedy Central Roast of William Shatner
Balok
That Thing You Do!
KJZZ Disk Jockey
Forced to Kill
Drifter
The Sure Hand of God
Clyde Trotter
F. You All: The Uwe Boll Story
Himself
Winnie the Pooh and the Blustery Day
Roo (voice)
Far and Away
Flynn
The Wild Country
Andrew Tanner
Bigfoot: The Unforgettable Encounter
Thompson
Twilight
EMS Worker
Evasive Action
Hector Miller
The Cat in the Hat
Kate the Caterer
American Bigfoot
Paul Miller
Play the Flute
Mr. Webber
Direct to Video: Straight to Video Horror of the 90s
Himself
Feast of Fear
The Messenger
To Hell and Back: The Making of 3 From Hell
Himself
Fun with Dick and Jane
INS Agent
American Christmas
Lee
Deported
Weird Carney
La Flamme Rouge
Conrad Wilhelm
The Death of Richie
Peanuts
Tango & Cash
Slinky
I Never Promised You a Rose Garden
Baseball Catcher
Harper Valley P.T.A.
Corley
My Dog Skip
Millard
Pauly Shore Is Dead
Pauly's Business Manager
Apple Seed
Hughie
Star Trek: Inside the Roddenberry Vault
Self
Balls Out
Philip
Digital Man
Dawkins
Michael Lives: The Making of Halloween
Self
Speed-Dating
Dom
Forget Paris
Exterminator
Telling You
Customer
Sparkle and Charm
Arnold
Nobody Gets Out Alive
Doctor Owen
Little White Lies
Limo Driver
Beyond Paranormal
Dr. Ulrich Von Strauss
My Dog Skip
Aunt Maggie
Far Cry
Scientist
Chow Bella
Playing with Beethoven
Theater Janitor
The Old Way
Eustice
Call Me Crazy: A Five Film
Harold
Get Crazy
Usher
The Onania Club
Gentle Giant
Mark Wedloe
The Courtship of Eddie's Father
Child Party Guest (uncredited)
Huckleberry Finn
Arch
Public Enemy #2
Ray Tidrow
Winnie the Pooh and the Honey Tree
Roo (voice)
River's End
Mr. Powell
Splash
Wedding Guest
Raising Genius
Mr. Goss
House of Dead: Director's Cut
Salish
My Big Fat Independent Movie
The Mechanic
The Powder Puff Principle
Principal Skelter
Heart of America
Artie Lynne
Grand-Daddy Day Care
Judge Littles
Freeway
Ronnie
Shows
Heroes
Tom Miller
The Pretender
Smitty
The Odd Couple
Randy Grainger
The F.B.I.
Alan Ellwood
My Name Is Earl
Creepy Rodney
The Streets of San Francisco
Strip Mall
Gunsmoke
Lonny
E! True Hollywood Story
Happy Days
The Mod Squad
Night Gallery
Herbie Bittman (segment "The Boy Who Predicted Earthquakes")
Total Recall 2070
Arrested Development
Johnny Bark
Space Rangers
Mimmer
The Fugitive
Johnny Stransel
Please Don't Eat the Daisies
The Andy Griffith Show
Leon
Star Trek
Balok
Star Trek: Enterprise
Muk
Lou Grant
The Rookies
Fringe
Emmanuel Grayson
Crossing Jordan
Gil Runkis
Hunter
Man in Restaurant
Laredo
Midj
The Monroes
Lancer
The Virginian
Tommy
Judd for the Defense
The Patty Duke Show
Gung Ho
Googie
Ben Casey
The Baileys of Balboa
The Cowboys
Steve
Breaking Point
The Jean Arthur Show
The Outer Limits
Dennis
Gentle Ben
Mark Wedloe
The Fitzpatricks
The Birthday Boys
Various
Star Trek: Discovery
Creepy Orion
Star Trek: Deep Space Nine
Grady
The Danny Kaye Show
Self
The Fugitive
Billy Taft
The View
Self - Guest
Seinfeld
Tobias Lehigh Nagy
From the Earth to the Moon
Paul Lucas
Late Night with Seth Meyers
Self
The F.B.I.
Josh Cobb
Bonanza
Michael Thorpe
Pam & Tommy
Schmitz
Star Trek: Strange New Worlds
Commander Buck Martinez
Married... with Children
Mullen
The Kelly Clarkson Show
The Mike Douglas Show
Self
Comedy Central Roasts
Self