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. Most recently, he provided the voice for the title character in Disney's Special Agent Oso.
| Movie | A Social Contract | Bennett Wilde | 2026 |
| Movie | Chili Finger | 2026 | |
| Movie | Little Lorraine | Fr. Williams | 2025-09-05 |
| Movie | Love Hurts | Cliff Cussick | 2025-02-06 |
| Movie | Pet Investigators | Jimmy the Butcher / Special Agent Brennan | 2025-05-15 |
| Movie | Guns of Redemption | Parson Dyer | 2025-03-07 |
| Movie | Hard Miles | Speedy | 2024-04-19 |
| Movie | The Invisible Raptor | William 'Willie' Walsh | 2024-12-06 |
| Movie | The Man in the White Van | Richard Williams | 2024-12-13 |
| Movie | A Nonsense Christmas with Sabrina Carpenter | Self | 2024-12-05 |
| Movie | Man and Witch: The Dance of a Thousand Steps | The Dog (voice) | 2024-07-28 |
| Movie | iMordecai | Marvin | 2023-02-10 |
| Movie | Holiday Twist | Whitmer | 2023-12-01 |
| Movie | Vindicta | Rick | 2023-10-06 |
| Movie | The Shift | Gabriel | 2023-11-30 |
| Movie | Go West | Narrator | 2023-07-19 |
| Movie | Adverse | Frankie | 2021-02-12 |
| Movie | Hero Mode | Jimmy Tisdale | 2021-06-04 |
| Movie | Charming the Hearts of Men | George | 2021-08-13 |
| Movie | LEGO DC: Shazam! Magic and Monsters | Shazam (voice) | 2020-04-28 |
| Series | The Epic Tales of Captain Underpants in Space | Narrator (voice) | 2020-07-10 |
| Movie | Showbiz Kids | Self | 2020-07-14 |
| Movie | Justice League Dark: Apokolips War | Billy Batson / Shazam (voice) | 2020-05-05 |
| Movie | The Spooky Tale of Captain Underpants: Hack-a-ween | Narrator / Mr Gigglenose (voice) | 2019-10-08 |
| Movie | Gloria Bell | Jeremy | 2019-03-07 |
| Series | No Good Nick | Ed Thompson | 2019-04-15 |
| Movie | Ploey: You Never Fly Alone | Fox (voice) | 2018-03-30 |
| Movie | eHero | Richard Brixton | 2018-05-24 |
| Series | The Epic Tales of Captain Underpants | Narrator (voice) | 2018-07-13 |
| Movie | Swing State | Bob Bernard | 2017-02-03 |
| Movie | Bad Kids of Crestview Academy | Headmaster Nash | 2017-01-13 |
| Movie | Tales of the Teenage Mutant Ninja Turtles: Super Shredder | Raphael (voice) | 2017-03-21 |
| Movie | Unleashed | Carl | 2017-08-25 |
| Movie | Espionage Tonight | Sam Jacobson | 2017-10-24 |
| Movie | The Lears | Tom Cornwall | 2017-04-22 |
| Movie | Dead Ant | Art | 2017-10-10 |
| Movie | Not a War Story | 2017-06-30 | |
| Movie | The Do-Over | Ted-O | 2016-05-27 |
| Series | Bunnicula | Chester (voice) | 2016-02-06 |
| Series | Justice League Action | Shazam (voice) | 2016-12-16 |
| Series | Unlocked: The World of Games, Revealed | Self | 2016-12-14 |
| Movie | Range 15 | Pilot Grigsby | 2016-06-15 |
| Movie | The Dramatics: A Comedy | Alex Wilson Dixon | 2015-02-10 |
| Movie | Justice League: Throne of Atlantis | Shazam (voice) | 2015-01-13 |
| Movie | Do You Believe? | Dr. Farell | 2015-03-20 |
| Movie | K-9 World Cup | 2015-03-18 | |
| Movie | Woodlawn | Hank | 2015-10-15 |
| Movie | Half-Shell Heroes: Blast to the Past | Raphael (voice) | 2015-11-03 |
| Movie | Remember the Sultana | Narrator | 2015-04-27 |
| Series | Con Man | Sean Astin | 2015-09-30 |
| Movie | Hatched: Chicks Gone Wild! | 2015-07-17 | |
| Movie | Checkmate | Dyson | 2015-07-03 |
| Movie | Cabin Fever: Patient Zero | Porter | 2014-02-05 |
| Movie | Boys of Abu Ghraib | Tanner | 2014-03-15 |
| Movie | I Know That Voice | Self (uncredited) | 2014-01-07 |
| Movie | Justice League: War | Shazam (voice) | 2014-01-21 |
| Movie | Stan Lee's Mighty 7 | Kid Kinergy (voice) | 2014-02-01 |
| Movie | The Surface | Mitch | 2014-10-09 |
| Movie | Moms' Night Out | Sean | 2014-03-25 |
| Movie | The Hero of Color City | Horatio (voice) | 2014-10-03 |
| Movie | Ribbit | Ribbit | 2014-09-04 |
| Series | The Strain | Jim Kent | 2014-07-13 |
| Movie | Video Games: The Movie | Self - Narrator | 2014-07-18 |
| Movie | Out West | Cal Calhoun | 2013-09-01 |
| Movie | Extraction | Kyle Black | 2013-09-05 |
| Movie | Santa Switch | Eddie | 2013-12-07 |
| Movie | The Freemason | Leon Weed | 2013-12-07 |
| Movie | A Monsterous Holiday | Spencer | 2013-10-15 |
| Movie | The Naughty List | Winter (voice) | 2013-12-10 |
| Movie | Dorothy and the Witches of Oz | Frack | 2012-02-17 |
| Movie | Addicted to Fame | Matt Foster (archive footage) | 2012-11-30 |
| Movie | Adopting Terror | Tim Broadbent | 2012-04-07 |
| Series | Teenage Mutant Ninja Turtles | Raphael (voice) | 2012-09-28 |
| Movie | Amazing Love | Stuart | 2012-11-06 |
| Movie | Demoted | Mike | 2011-03-12 |
| Movie | Stay Cool | Big Girl | 2011-09-16 |
| Movie | Love's Christmas Journey | Mayor Wayne | 2011-11-05 |
| Movie | And They're Off | Dusty Sanders | 2011-10-28 |
| Series | The Witches of Oz | Frack | 2011-05-07 |
| Movie | WWII in HD: The Air War | Steve Pisanos (voice) | 2010-11-10 |
| Movie | Making of a Cult Classic: The Unauthorized Story of 'The Goonies' | Self | 2010-07-13 |
| Movie | With Great Power: The Stan Lee Story | Self | 2010-07-24 |
| Series | Special Agent Oso | Special Agent OSO | 2009-04-04 |
| Movie | Alvin and the Chipmunks: The Squeakquel | Meerkat Manor Narrator (voice) | 2009-12-21 |
| Movie | Spirit Of The Forest | Furi (english voice) | 2008-09-12 |
| Movie | Forever Strong | Marcus Tate | 2008-09-26 |
| Series | The Colour of Magic | Twoflower | 2008-03-23 |
| Movie | What Love Is | Geroge | 2007-03-23 |
| Movie | The Final Season | Kent Stock | 2007-10-12 |
| Movie | Borderland | Randall | 2007-11-09 |
| Series | Masters of Science Fiction | Unknown | 2007-08-04 |
| Movie | Marilyn Hotchkiss' Ballroom Dancing & Charm School | Kip Kipling | 2006-01-12 |
| Movie | Click | Bill | 2006-06-23 |
| Movie | Love and Debate | Coach Amal | 2006-06-13 |
| Movie | Asterix and the Vikings | Justforkix (Voice / English Version) | 2006-04-12 |
| Movie | Slipstream | Stuart Conway | 2005-02-03 |
| Movie | Bigger Than the Sky | Ken Zorbell | 2005-02-18 |
| Movie | Ringers: Lord of the Fans | Self | 2005-01-21 |
| Series | Meerkat Manor | Narrator | 2005-09-02 |
| Series | Into the West | Martin Jarrett | 2005-06-10 |
| Movie | Smile | Mr. Matthews | 2005-04-08 |
| Series | Hercules | Linus | 2005-05-16 |
| Movie | The Art of Imagination: A Tribute to Oz | Self | 2005-10-25 |
| Series | Best Week Ever | Unknown | 2004-01-23 |
| Movie | 50 First Dates | Doug Whitmore | 2004-02-13 |
| Movie | The Making of the Return of the King | Self | 2004-04-01 |
| Series | The Tony Danza Show | 2004-09-13 | |
| Movie | Elvis Has Left the Building | Aaron | 2004-08-27 |
| Movie | Balto III: Wings of Change | Kodi (voice) | 2004-04-14 |
| Series | Jimmy Kimmel Live! | Unknown | 2003-01-26 |
| Series | Real Time with Bill Maher | Unknown | 2003-02-21 |
| Series | Las Vegas | Unknown | 2003-09-22 |
| Movie | Beyond the Movie: The Return of the King | Self | 2003-12-12 |
| Movie | The Lord of the Rings: The Return of the King | Sam | 2003-12-17 |
| Series | The Ellen DeGeneres Show | Unknown | 2003-09-08 |
| Series | Jeremiah | Mister Smith | 2002-03-03 |
| Movie | The Making of The Fellowship of the Ring | 2002-04-01 | |
| Movie | The Lord of the Rings: The Two Towers | Sam | 2002-12-18 |
| Series | Monk | Unknown | 2002-07-12 |
| Movie | The Sky is Falling | Mr. Schwartz | 2001-06-07 |
| Series | 24 | Lynn McGill | 2001-11-06 |
| Movie | Beyond the Movie: The Fellowship of the Ring | Self | 2001-12-23 |
| Movie | Quest for the Ring | Self | 2001-11-29 |
| Movie | Passage to Middle-Earth: The Making of 'The Lord of the Rings' | Self | 2001-12-09 |
| Movie | The Lord of the Rings: The Fellowship of the Ring | Sam | 2001-12-18 |
| Movie | Deterrence | Ralph | 2000-03-10 |
| Movie | Icebreaker | Matt Foster | 2000-05-01 |
| Movie | Dish Dogs | Morgan | 2000-08-29 |
| Movie | The Last Producer | Bo Pomerantz | 2000-08-22 |
| Movie | Kimberly | Bob | 1999-10-28 |
| Movie | Bulworth | Gary | 1998-05-15 |
| Series | The View | Unknown | 1997-08-11 |
| Series | Perversions of Science | Unknown | 1997-06-07 |
| Movie | The Long Way Home | Earl G. Harrison, Commissioner of Immigration and Naturalization (voice) | 1997-09-19 |
| Movie | Courage Under Fire | Patella | 1996-07-04 |
| Movie | Harrison Bergeron | Harrison Bergeron | 1995-08-13 |
| Movie | The Low Life | Andrew | 1995-11-01 |
| Movie | Safe Passage | Izzy | 1994-12-01 |
| Movie | Teresa's Tattoo | Step-Brother (uncredited) | 1994-03-15 |
| Series | Late Night with Conan O'Brien | Unknown | 1993-09-13 |
| Movie | Rudy | Daniel E. 'Rudy' Ruettiger | 1993-09-17 |
| Movie | Where the Day Takes You | Greg | 1992-09-11 |
| Movie | Encino Man | Dave Morgan | 1992-05-22 |
| Series | The Tonight Show with Jay Leno | Unknown | 1992-05-25 |
| Movie | Toy Soldiers | Billy Tepper | 1991-04-24 |
| Movie | The Willies | Michael | 1990-12-27 |
| Series | Law & Order | Unknown | 1990-09-13 |
| Movie | Memphis Belle | Richard "Rascal" Moore | 1990-09-07 |
| Movie | Staying Together | Duncan McDermott | 1989-11-10 |
| Movie | The War of the Roses | Josh at 17 | 1989-12-08 |
| Movie | Like Father Like Son | Clarence / Trigger | 1987-10-02 |
| Movie | White Water Summer | Alan | 1987-07-10 |
| Movie | The B.R.A.T. Patrol | Leonard Kinsey | 1986-10-26 |
| Movie | The Goonies | Mikey | 1985-06-07 |
| Movie | Please Don't Hit Me, Mom | Brian Reynolds | 1983-01-19 |
| Movie | The Rules of Marriage | Charlie Hagen | 1982-05-10 |