Sean Astin was first seen on-screen in the 1981 television film ‘Please Don’t Hit Me, Mom.’ The next year, Sean was seen in another television film 'The Rules of Marriage.'
In 1985, he made his film debut in ‘The Goonies,’ an adventure comedy film and received a ‘Young Artist Award’ for ‘Best Starring Performance by a Young Actor – Motion Picture’ for his performance in the movie. Sean also appeared in 'The O'Briens' that same year. In 1987, Sean appeared in two movies: ‘Like Father Like Son’ and ‘White Water Summer’ where he played the role of a 17-year old ‘Josh Rose.’Â
After a hiatus for a year, Sean appeared in the 1989 black comedy ‘The War of the Roses,’ directed by Danny DeVito. The movie was a massive box office hit and became the thirteenth highest-grossing film of 1989. The same year, he starred as ‘Duncan McDermott’ in the comedy-drama film ‘Staying Together.’Â
In 1991, Sean Astin starred in the action film ‘Toy Soldiers.’ While the movie was panned by the critics, Sean earned a lot of praise for his role and even received a nomination for the ‘Young Artist Award’ for ‘Outstanding Young Ensemble Cast in a Motion Picture.’ His next release in 1991 was the Brian Peck-directed comedy film ‘The Willies.’
Sean Astin then appeared in movies ‘Where the Day Takes You’ (1992), ‘Encino Man’ (1992), and ‘Rudy’ (1993) where he portrayed the role of the famous motivational speaker ‘Daniel Ruettiger.’ He received an ‘Academy Award’ nomination in the category of ‘Best Live Action Short Film,’ for ‘Kangaroo Court,’ which was directed and co-produced by him in 1994.
Thereafter, Sean went on to star in ‘Teresa's Tattoo’ (1994), ‘The Low Life’ (1995), ‘Harrison Bergeron’ (1995), ‘Courage Under Fire’ (1996), ‘Wag the Dog’ (1997), ‘Boy Meets Girl’ (1998), ‘Bulworth’ (1998), and ‘Deterrence’ (1999). In the year 2000, Sean Astin appeared in 4 movies: ‘Dish Dogs,’ ‘The Last Producer,’ ‘Icebreaker,’ and ‘The Sky Is Falling.’Â
In 2001, Sean appeared in the fantasy-adventure film ‘The Lord of the Rings: The Fellowship of the Ring.’ He played the role of ‘Samwise Gamgee’ for which he earned a ‘Screen Actors Guild’ award nomination. The movie went on to become a massive box office success and critical success. The following year, he appeared in ‘The Lord of the Rings: The Two Towers’ in which he reprised his role as ‘Samwise Gamgee.’ This time, he earned an ‘MTV Movie Award’ and ‘Visual Effects Society’ for his performance in the film.Â
In 2004, Sean returned to television and lent his voice to the character ‘Pix the Elf in the movie ‘Higglytown Heroes.’ He then played the role of ‘Linus’ in the 2005 miniseries ‘Hercules.’ The year 2005 proved to be lucky for Sean as he had 6 releases, including ‘Smile,’ ‘Bigger Than the Sky’, ‘Slipstream’, ‘Marilyn Hotchkiss Ballroom Dancing & Charm School’, ‘Borderland,’ and ‘Thanks to Gravity.’Â
Thereafter, Sean appeared in movies like ‘What Love Is’ (2006), ‘Asterix and the Vikings’ (2006), ‘The Final Season’ (2007), ‘Spirit of the Forest’ (2008), and ‘Demoted’ (2011), and ‘The Freemason’ where he played the ‘Leon Weed’ which earned him the ‘Utah Film Award’ for ‘Best Actor.’ He was also seen in movies like ‘The Surface’ (2014), Do You Believe? (2015), ‘The Do-Over’ (2016), ‘Bad Kids of Crestview Academy’ (2017), and Hero Mode (2021).
Sean Astin has also voiced the DC comic character ‘Shazam’ in the Justice League animated movie series, including ‘Justice League: War’ (2014), ‘Justice League: Throne of Atlantis’ (2015), and ‘Justice League Dark: Apokolips War’ (2020).  Â
He is currently playing the ‘narrator’ in the animated television series ‘The Epic Tales of Captain Underpants.’