Sean Patrick 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.

Filmography

• 2026A Social Contract — Bennett Wilde
• 2026Chili Finger — Ron
• 2026Little Lorraine — Fr. Williams
• 2026Matter of Time — Gibbs
• 2025Guns of Redemption — Parson Dyer
• Haha, You Clowns — Sean Astin (voice)
• 2025Love Hurts — Cliff Cussick
• 2025Pet Investigators — Jimmy the Butcher / Special Agent Brennan
• 2024Hard Miles — Speedy
• 2024Man and Witch: The Dance of a Thousand Steps — The Dog (voice)
• Mighty Monsterwheelies — Invisible Van (voice)
• 2024The Invisible Raptor — William 'Willie' Walsh
• 2024The Man in the White Van — Richard Williams
• 2023Go West — Narrator
• 2023Holiday Twist — Mr. Whitmer
• 2023The Shift — Gabriel
• 2023Vindicta — Rick
• 2023iMordecai — Marvin
• Kung Fu Panda: The Dragon Knight — Master Sloth (voice)
• 2021Adverse — Frankie
• 2021Charming the Hearts of Men — George
• 2021Hero Mode — Jimmy Tisdale
• Playing with Power: The Nintendo Story — Narrator, Executive Producer
• 2020Captain Underpants Epic Choice-o-Rama — Narrator / Putter Mulligan (voice)
• 2020Captain Underpants Mega Blissmas — Narrator (voice)
• 2020Justice League Dark: Apokolips War — Billy Batson / Shazam (voice)
• 2020LEGO DC: Shazam! Magic and Monsters — Shazam (voice)
• Perry Mason — Sunny Gryce
• The Epic Tales of Captain Underpants in Space — Narrator (voice), Abraham Lincoln (voice), Mr. Gigglenose (voice)
• 2019Gloria Bell — Jeremy
• No Good Nick — Ed Thompson
• Scooby-Doo and Guess Who? — Sean Astin (voice)
• 2019The Spooky Tale of Captain Underpants Hack-a-ween — Narrator / Mr Gigglenose (voice)
• Minecraft: Story Mode — Reginal (voice)
• 2018Remember the Sultana — Narrator, Executive Producer
• The Conners — Tyler
• The Epic Tales of Captain Underpants — Narrator (voice)
• 2018eHero — Richard Brixton
• 2017Bad Kids of Crestview Academy — Headmaster Nash
• 2017Dead Ant — Art
• 2017Espionage Tonight — Sam Jacobson
• 2017Not a War Story
• 2017Swing State — Bob Bernard
• 2017Tales of the Teenage Mutant Ninja Turtles: Super Shredder — Raphael (voice)
• 2017The Lears — Tom Cornwall
• 2017Unleashed — Carl
• Bunnicula — Chester (voice)
• Justice League Action — Billy Batson / Shazam (voice), Shazam / Billy (voice)
• 2016Range 15 — Pilot Grigsby
• Stranger Things — Bob Newby, Bob Newby (archive footage) (uncredited)
• 2016The Do-Over — Ted-O
• 2015Checkmate — Dyson
• Con Man — Sean Astin
• 2015Do You Believe? — Dr. Farell
• 2015Half-Shell Heroes: Blast to the Past — Raphael (voice)
• 2015Hatched: Chicks Gone Wild!
• 2015Justice League: Throne of Atlantis — Shazam (voice)
• New Looney Tunes — Actor Sean Astin (voice)
• Supergirl — Pete Andrews
• 2015Teenage Mutant Ninja Turtles: Pulverizer Power — Raphael (voice)
• 2015Teenage Mutant Ninja Turtles: Renegade Rampage — Raphael (voice)
• 2015The Dramatics: A Comedy — Alex Wilson Dixon
• 2015Woodlawn — Hank
• 2014Boys of Abu Ghraib — Tanner
• 2014Cabin Fever: Patient Zero — Porter
• 2014Justice League: War — Shazam (voice)
• 2014Moms' Night Out — Sean
• Penn Zero: Part-Time Hero — Blaze (voice)
• 2014Ribbit — Ribbit
• 2014Stan Lee's Mighty 7 — Kid Kinergy (voice)
• 2014The Hero of Color City — Horatio (voice)
• The Librarians — The Amazing Mysterium / Kirby
• The Strain — Jim Kent
• 2014The Surface — Mitch
• 2014Video Games: The Movie — Self - Narrator, Other
• 2013A Monsterous Holiday — Spencer
• Brooklyn Nine-Nine — Sergeant Knox
• 2013Extraction — Kyle Black
• 2013Out West — Cal Calhoun
• 2013Santa Switch — Eddie
• Sofia the First — Bengee (voice)
• 2013Teenage Mutant Ninja Turtles: Enter Shredder — Raphael (voice)
• 2013The Freemason — Leon Weed
• 2013The Naughty List — Winter (voice)
• 2012Addicted to Fame — Matt Foster (archive footage)
• 2012Adopting Terror — Tim Broadbent
• 2012Amazing Love — Stuart
• 2012Dorothy and the Witches of Oz — Frack
• Teenage Mutant Ninja Turtles — Raphael (voice)
• Alphas — Mitchel Morgan
• 2011And They're Off — Dusty Sanders
• 2011Deep Blue Breath — The Father
• 2011Demoted — Mike
• Franklin & Bash — Steven Piper
• 2011Love's Christmas Journey — Mayor Wayne
• 2011Stay Cool — Big Girl
• The Witches of Oz — Frack
• 2010The Color of Magic 2in1 — Dvoukvítek
• 2010WWII in HD: The Air War — Steve Pisanos (voice)
• 2009Alvin and the Chipmunks: The Squeakquel — Meerkat Manor Narrator (voice)
• 2009Part Two: The Warm Mission — Sean
• Special Agent Oso — Special Agent OSO
• 2008Forever Strong — Marcus Tate
• 2008The Color of Magic - Die Reise des Zauberers Teil 1 — Twoflower
• 2008The Color of Magic - Die Reise des Zauberers Teil 2 — Twoflower
• The Colour of Magic — Twoflower
• 2007Borderland — Randall
• 2007My Wife Is Retarded — Jeff
• The Big Bang Theory — Greg Pemberton
• 2007The Final Season — Kent Stock
• 2007What Love Is — Geroge
• 2006Click — Bill
• 2006Love and Debate — Coach Amal
• 2006Marilyn Hotchkiss' Ballroom Dancing & Charm School — Kip Kipling
• 2006The Making of 'The Fellowship of the Ring'
• 2005Bigger Than the Sky — Ken Zorbell
• Hercules — Linus
• Into the West — Martin Jarrett
• Meerkat Manor — Narrator
• My Name Is Earl — Rick
• Robot Chicken — Steve Jobs / Gallagher (voice)
• 2005Slipstream — Stuart Conway, Co-Producer
• 2005Smile — Mr. Matthews
• 200450 First Dates — Doug Whitmore
• 2004Balto III: Wings of Change — Kodi (voice)
• Best Week Ever
• 2004Elvis Has Left the Building — Aaron
• 2004Party Wagon — Randall P. McDuff / Josiah (voice)
• Las Vegas — Lloyd Campbell
• NCIS — Tyler Elliott
• 2003Snowflake Bentley
• 2003The Long and Short of It — Writer, Director, Producer, Story
• 2003The Lord of the Rings: The Return of the King — Sam
• Jeremiah — Mister Smith
• Monk — Paul Buchanan
• 2002The Lord of the Rings: The Two Towers — Sam
• 24 — Lynn McGill
• 2001The Lord of the Rings: The Fellowship of the Ring — Sam
• 2001The Sky is Falling — Mr. Schwartz
• 2000Deterrence — Ralph
• 2000Dish Dogs — Morgan
• 2000Icebreaker — Matt Foster
• 2000The Last Producer — Bo Pomerantz
• Angel — Director
• 1999Kimberly — Bob
• 1998Boy Meets Girl — Mike
• 1998Bulworth — Gary
• Perversions of Science — Taylor, Director
• 1997The Long Way Home — Earl G. Harrison, Commissioner of Immigration and Naturalization (voice)
• 1996Courage Under Fire — Patella
• 1995Harrison Bergeron — Harrison Bergeron
• 1995The Low Life — Andrew
• 1994Kangaroo Court — Director
• 1994Safe Passage — Izzy
• 1994Teresa's Tattoo — Step-Brother (uncredited)
• 1993Rudy — Daniel E. 'Rudy' Ruettiger
• 1992Encino Man — Dave Morgan
• The Tonight Show with Jay Leno
• 1992Where the Day Takes You — Greg
• 1991Toy Soldiers — Billy Tepper
• Law & Order — Wayne Hensley
• 1990Memphis Belle — Richard "Rascal" Moore
• 1990The Willies — Michael
• 1989Staying Together — Duncan McDermott
• 1989The War of the Roses — Josh at 17
• 1987Like Father Like Son — Clarence / Trigger
• 1987White Water Summer — Alan
• 1986The B.R.A.T. Patrol — Leonard Kinsey
• 1985The Goonies — Mikey
• 1983Please Don't Hit Me, Mom — Brian Reynolds
• 1982The Rules of Marriage — Charlie Hagen
• The Wonderful World of Disney — Leonard Kinsey
• American Men — Sean Wilson
• Oh, the Guilt — Dormazestrin Spokesman
• Scruggs
• The Lord of the Rings: Shadow of the Past — Sam
• Will to Win

Appearances as themselves (38)

• 2025Behind the Curtain: Stranger Things: The First Shadow — Self - 'Stranger Things' Bob Newby (archive footage)
• 2024A Nonsense Christmas with Sabrina Carpenter — Self
• Reunited Apart — Self
• Beyond Stranger Things — Self
• Unlocked: The World of Games, Revealed — Self
• 2014A Long Run — Self
• 2010Making of a Cult Classic: The Unauthorized Story of 'The Goonies' — Self
• 2010With Great Power: The Stan Lee Story — Self
• 2006The Making of 'The Return of the King' — Self
• 2006The Making of 'The Two Towers' — Self
• 2005Collectormania 7 — Self
• 2005Ringers: Lord of the Fans — Self
• 2005The Art of Imagination: A Tribute to Oz — Self
• The Late Late Show with Craig Ferguson — Self - Guest
• The Reichen Show — Self
• 2004A Filmmaker's Journey: Making 'The Return of the King' — Self
• The Tony Danza Show — Self
• 2003Beyond the Movie: The Return of the King — Self
• 2003J.R.R. Tolkien: Origins of Middle-Earth — Self
• Jimmy Kimmel Live! — Self
• Real Time with Bill Maher — Self
• The Ellen DeGeneres Show — Self
• 2003The Making of 'The Long and Short of It' — Self
• 2003The Quest Fulfilled: A Director's Vision — Self
• 2002A Day in the Life of a Hobbit — Self
• 2002The Fellowship of the Ring: Cameras in Middle-earth — Self
• 2002The Fellowship of the Ring: Designing and Building Middle-earth + Weta Workshop + Costume Design — Self
• 2002The Fellowship of the Ring: From Book to Script — Self
• 2002The Fellowship of the Ring: The Fellowship of the Cast — Self
• 2001Beyond the Movie: The Fellowship of the Ring — Self
• 2001Passage to Middle-Earth: The Making of 'The Lord of the Rings' — Self
• 2001Quest for the Ring — Self
• The View — Self
• The Actor Awards Presented by SAG-AFTRA — Self
• Late Night with Conan O'Brien — Self - Guest
• MTV Movie & TV Awards — Self
• 1985The Making Of The Goonies — Self
• Entertainment Tonight — Self