Sean Astin (born February 25, 1971) is an American film actor, director, and producer better known for his film roles as Mikey Walsh in The Goonies, the title character of Rudy, and Samwise Gamgee in the Lord of the Rings trilogy. In television, he appeared as Lynn McGill in the fifth season of 24. He also provided the voice for the title character in Disney's Special Agent Oso.
Known For

The Man in the White Van
Richard Williams
2024

The Invisible Raptor
William 'Willie' Walsh
2024

Hard Miles
Speedy
2024

Holiday Twist
Whitmer
2023

The Shift
Gabriel
2023

Vindicta
Rick
2023

Go West
Narrator
2023

iMordecai
Marvin
2023

Captain Underpants: Mega Blissmas
Narrator (voice)
2020

eHero
Richard Brixton
2018

Unleashed
Carl
2017

The Lears
Tom Cornwall
2017

Tales of the Teenage Mutant Ninja Turtles: Super Shredder
Raphael (voice)
2017

Swing State
Bob Bernard
2017

Bad Kids of Crestview Academy
Headmaster Nash
2017

Range 15
Pilot Grigsby
2016

The Do-Over
Ted-O
2016

Half-Shell Heroes: Blast to the Past
Raphael (voice)
2015

Woodlawn
Hank
2015

Hatched: Chicks Gone Wild!
2015

Checkmate
Dyson
2015

Teenage Mutant Ninja Turtles: Pulverizer Power
Raphael (voice)
2015

Do You Believe?
Dr. Farell
2015

K-9 World Cup
2015

The Dramatics: A Comedy
Alex Wilson Dixon
2015
Teenage Mutant Ninja Turtles: Renegade Rampage
Raphael (voice)
2015

Justice League: Throne of Atlantis
Shazam (voice)
2015

The Surface
Mitch
2014

The Hero of Color City
Horatio (voice)
2014

Ribbit
Ribbit
2014

Video Games: The Movie
Self - Narrator
2014

Moms' Night Out
Sean
2014

Boys of Abu Ghraib
Tanner
2014

Cabin Fever: Patient Zero
Porter
2014

Stan Lee's Mighty 7
Kid Kinergy (voice)
2014

Justice League: War
Shazam (voice)
2014

The Naughty List
Winter (voice)
2013

The Freemason
Leon Weed
2013

Santa Switch
Eddie
2013

A Monsterous Holiday
Spencer
2013

Teenage Mutant Ninja Turtles: Enter Shredder
Raphael (voice)
2013

Extraction
Kyle Black
2013

Out West
Cal Calhoun
2013

Addicted to Fame
Matt Foster (archive footage)
2012

Amazing Love
Stuart
2012

Adopting Terror
Tim Broadbent
2012

Love's Christmas Journey
Mayor Wayne
2011

And They're Off
Dusty Sanders
2011

Deep Blue Breath
The Father
2011

Demoted
Mike
2011

WWII in HD: The Air War
Steve Pisanos (voice)
2010

With Great Power: The Stan Lee Story
Self
2010

Making of a Cult Classic: The Unauthorized Story of 'The Goonies'
Self
2010

Stay Cool
Big Girl
2009

Forever Strong
Marcus Tate
2008

Borderland
Randall
2007

The Final Season
Kent Stock
2007

What Love Is
Geroge
2007

Click
Bill
2006

Love and Debate
Coach Amal
2006

Smile
Mr. Matthews
2005

Bigger Than the Sky
Ken Zorbell
2005

Slipstream
Stuart Conway
2005

A Filmmaker's Journey: Making 'The Return of the King'
Self
2004

Elvis Has Left the Building
Aaron
2004

Balto III: Wings of Change
Kodi (voice)
2004

Party Wagon
Randall P. McDuff / Josiah (voice)
2004

50 First Dates
Doug Whitmore
2004

The Lord of the Rings: The Return of the King
Sam
2003

Beyond the Movie: The Return of the King
Self
2003
The Making of 'The Long and Short of It'
Self
2003

Snowflake Bentley
2003

Film Collectibles: Capturing Movie Memories
Self
2003

The Lord of the Rings: The Two Towers
Sam
2002

Beyond the Movie: The Fellowship of the Ring
Self
2001

The Lord of the Rings: The Fellowship of the Ring
Sam
2001

Quest for the Ring
Self
2001

The Sky is Falling
Mr. Schwartz
2001

Dish Dogs
Morgan
2000

The Last Producer
Bo Pomerantz
2000

Icebreaker
Matt Foster
2000

Deterrence
Ralph
2000

Bulworth
Gary
1998

The Long Way Home
Earl G. Harrison, Commissioner of Immigration and Naturalization (voice)
1997

Courage Under Fire
Patella
1996

The Low Life
Andrew
1995

Harrison Bergeron
Harrison Bergeron
1995

Safe Passage
Izzy
1994

Teresa's Tattoo
Step-Brother (uncredited)
1994

Rudy
Daniel E. 'Rudy' Ruettiger
1993

Encino Man
Dave Morgan
1992

Where the Day Takes You
Greg
1992

Toy Soldiers
Billy Tepper
1991

The Willies
Michael
1990

Memphis Belle
Richard "Rascal" Moore
1990

Staying Together
Duncan McDermott
1989

Like Father Like Son
Clarence / Trigger
1987

White Water Summer
Alan
1987

The B.R.A.T. Patrol
Leonard Kinsey
1986

The Goonies
Mikey Walsh
1985
A Social Contract
Bennett Wilde

Matter of Time
Gibbs
2025

Pet Investigators
Jimmy the Butcher / Special Agent Brennan
2025

Guns of Redemption
Parson Dyer
2025

Love Hurts
Cliff Cussick
2025

A Nonsense Christmas with Sabrina Carpenter
Self
2024

Mighty Monsterwheelies
Invisible Van (voice) · (26 episodes)
2024

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

Kung Fu Panda: The Dragon Knight
Master Sloth (voice) · (2 episodes)
2022

Charming the Hearts of Men
George
2021

Hero Mode
Jimmy Tisdale
2021

Playing with Power: The Nintendo Story
Narrator · (5 episodes)
2021

Adverse
Frankie
2021

The Epic Tales of Captain Underpants in Space
Narrator (voice) · (6 episodes)
2020

The Epic Tales of Captain Underpants in Space
Abraham Lincoln (voice) · (1 episode)
2020

The Epic Tales of Captain Underpants in Space
Mr. Gigglenose (voice) · (1 episode)
2020

Perry Mason
Sunny Gryce · (2 episodes)
2020

Justice League Dark: Apokolips War
Billy Batson / Shazam (voice)
2020

LEGO DC: Shazam! Magic and Monsters
Shazam (voice)
2020

Reunited Apart
Self · (2 episodes)
2020

Captain Underpants: Epic Choice-o-rama
Narrator / Putter Mulligan (voice)
2020

The Spooky Tale of Captain Underpants: Hack-a-ween
Narrator / Mr Gigglenose (voice)
2019

Scooby-Doo and Guess Who?
Sean Astin (voice) · (1 episode)
2019

No Good Nick
Ed Thompson · (20 episodes)
2019

Gloria Bell
Jeremy
2019

Minecraft: Story Mode
Reginal (voice) · (1 episode)
2018

The Conners
Tyler · (2 episodes)
2018

The Epic Tales of Captain Underpants
Teachertrons (voice) · (1 episode)
2018

The Epic Tales of Captain Underpants
Charles Cotesworth Pinckney (voice) · (1 episode)
2018

The Epic Tales of Captain Underpants
Narrator (voice) · (39 episodes)
2018

The Epic Tales of Captain Underpants
TV Caesar / TV Cruelius Sneezer (voice) · (1 episode)
2018

The Epic Tales of Captain Underpants
Pinches the Purple Penguin (voice) · (1 episode)
2018

Ploey: You Never Fly Alone
Fox (voice)
2018

Beyond Stranger Things
Self · (3 episodes)
2017

Espionage Tonight
Sam Jacobson
2017

Dead Ant
Art
2017

Not a War Story
2017

Justice League Action
Billy Batson / Shazam (voice) · (2 episodes)
2016

Justice League Action
Shazam / Billy (voice) · (1 episode)
2016

Unlocked: The World of Games, Revealed
Self · (8 episodes)
2016

Stranger Things
Bob Newby · (10 episodes)
2016

Bunnicula
Chester (voice) · (104 episodes)
2016

Supergirl
Pete Andrews · (2 episodes)
2015

Con Man
Sean Astin · (2 episodes)
2015

Wabbit: A Looney Tunes Production
Actor Sean Astin (voice) · (3 episodes)
2015

Remember the Sultana
Narrator
2015

The Librarians
The Amazing Mysterium / Kirby · (1 episode)
2014

Penn Zero: Part-Time Hero
Blaze (voice) · (4 episodes)
2014

The Strain
Jim Kent · (14 episodes)
2014

A Long Run
Self
2014

Brooklyn Nine-Nine
Sergeant Knox · (1 episode)
2013

Sofia the First
Bengee (voice) · (1 episode)
2013

Teenage Mutant Ninja Turtles
Raphael (voice) · (124 episodes)
2012

Dorothy and the Witches of Oz
Frack
2012

Alphas
Mitchel Morgan · (2 episodes)
2011

Franklin & Bash
Steven Piper · (1 episode)
2011

The Witches of Oz
Frack · (2 episodes)
2011

Alvin and the Chipmunks: The Squeakquel
Meerkat Manor Narrator (voice)
2009
Part Two: The Warm Mission
Sean
2009

Special Agent Oso
Special Agent OSO · (69 episodes)
2009

The Colour of Magic
Twoflower · (2 episodes)
2008

The Big Bang Theory
Greg Pemberton · (3 episodes)
2007

Masters of Science Fiction
(1 episode)
2007

My Wife Is Retarded
Jeff
2007

Marilyn Hotchkiss' Ballroom Dancing & Charm School
Kip Kipling
2006

The Reichen Show
Self · (1 episode)
2005

The Art of Imagination: A Tribute to Oz
Self
2005

My Name Is Earl
Rick · (1 episode)
2005

Meerkat Manor
Narrator · (52 episodes)
2005

Into the West
Martin Jarrett · (6 episodes)
2005

Hercules
Linus · (2 episodes)
2005

Robot Chicken
Steve Jobs / Gallagher (voice) · (1 episode)
2005

Ringers: Lord of the Fans
Self
2005

The Late Late Show with Craig Ferguson
Self · (1 episode)
2005
The Tony Danza Show
Self · (2 episodes)
2004

The Making of the Return of the King
Self
2004

Best Week Ever
(3 episodes)
2004

The Quest Fulfilled: A Director's Vision
Self
2003

NCIS
Tyler Elliott · (1 episode)
2003

Las Vegas
(1 episode)
2003

The Ellen DeGeneres Show
Self · (2 episodes)
2003

The Making of The Two Towers
2003

Real Time with Bill Maher
Self · (1 episode)
2003

Jimmy Kimmel Live!
(1 episode)
2003

Monk
Paul Buchanan · (1 episode)
2002

The Making of The Fellowship of the Ring
2002

Jeremiah
Mister Smith · (35 episodes)
2002

A Passage to Middle-Earth: Making of 'Lord of the Rings'
Self
2001

24
Lynn McGill · (10 episodes)
2001

Kimberly
Bob
1999

Boy Meets Girl
Mike
1998

The View
Self · (5 episodes)
1997

Perversions of Science
Taylor · (1 episode)
1997

Late Night with Conan O'Brien
Self - Guest · (2 episodes)
1993

MTV Movie & TV Awards
Self · (1 episode)
1992

The Making of 'The Goonies'
Self
1985

The Rules of Marriage
Charlie Hagen
1982
Little Lorraine
Fr. Williams
Chili Finger

Oh, the Guilt
Dormazestrin Spokesman

The Tonight Show with Jay Leno
(2 episodes)
1992

Law & Order
Wayne Hensley · (1 episode)
1990

The War of the Roses
Josh at 17
1989

Please Don't Hit Me, Mom
Brian Reynolds
1983

Entertainment Tonight
Self · (1 episode)
1981

The Wonderful World of Disney
Leonard Kinsey · (1 episode)
1954
American Men
Sean Wilson · (1 episode)