Sean Astin is an American actor and trade union leader who serves as the 4th national president of SAG-AFTRA. He began his career as a child actor, making his film debut as Mikey Walsh in The Goonies, followed by significant roles as Billy Tepper in Toy Soldiers, Dave Morgan in Encino Man, Daniel Ruettiger in Rudy, and Samwise Gamgee in The Lord of the Rings trilogy. He is known to television audiences for portraying Lynn McGill on the fifth season of 24, the voice of Oso in Special Agent Oso, the voice of Raphael on Teenage Mutant Ninja Turtles, and Bob Newby on the second season of Stranger Things.
Personal Life
Birthday / Date of Birth
He was born on the 25th of February 1971, in Santa Monica, California, United States.
| Birth Name | Sean Patrick Duke |
| Nickname | Sean |
| Date of Birth | 25th of February 1971 |
| Place of Birth | Santa Monica, California, United States. |
| Age | 55 years old |
| Sun Sign | Pisces |
| Profession | Actor, Producer, Director, Voice Artist |
| Nationality | American |
| Ethnicity | Mixed |
| Religion | Christianity |
Education
Astin attended Catholic school and later became a Protestant. Sean is a graduate of the Crossroads High School for the Arts in Santa Monica and completed master classes in acting at the Stella Adler Conservatory in Los Angeles. He attended Los Angeles Valley College before transferring UCLA, where he graduated cum laude with a bachelor of arts in history and English (American literature and culture).
Family Details
- Father – Michael Tell (Biological), John Astin (Stepfather)
- Mother – Patty Duke (Academy Award–winning actress)
- Siblings – Mackenzie Astin, Alexander Astin, and others
Marital Status
Married
Girlfriend / Spouse
Sean Astin has dated –
- Christine
Physical Statistics
| Height |
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| Weight |
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| Body Measurements |
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| Body Build | Average |
| Eye Color | Blue |
| Hair Color | Light Brown |
| Shoe Size | 9 (US) |
| Dress Size | N/A |
| Sexuality | Straight |
Professional Statistics
Famous For
Astin is well known for his film debut portraying Mikey in Steven Spielberg’s The Goonies, for playing the title role in the critically acclaimed Rudy, and for his role as the beloved Sam Gamgee in the Academy Award winning trilogy, The Lord of the Rings: The Fellowship of the Ring, The Lord of the Rings: The Two Towers, and The Lord of the Rings: The Return of the King. He is widely admired for portraying loyal, courageous, and emotionally resonant characters. Sean’s acting awards include a Screen Actors Guild Award and two Young Artist Awards.
Television Debut
In 1981, Sean made his television debut in television film Please Don’t Hit Me, Mom as Brian Reynolds.
Film Debut
In 1985, Astin made his feature film debut in The Goonies as Michael “Mikey” Walsh.
Sean Astin Net worth
Sean Astin has an estimated net worth of $8 million dollars as of 2026.
Social Media Profiles
- Facebook – Sean Astin
- Instagram – seanastin
- X – Sean Astin
Some Lesser Known Facts About Sean Astin
- Sean was born in Santa Monica, California, the son of actress Patty Duke and Michael Tell. At the time, it was incorrectly reported that entertainer Desi Arnaz Jr. was his biological father.
- Astin’s first acting role was in a 1981 television film titled Please Don’t Hit Me, Mom, in which he played an eight-year-old child with an abusive mother (portrayed by his real-life mother Patty Duke). Astin made his film debut at age 13 as Mikey Walsh in The Goonies (1985).
- After The Goonies, Astin appeared in several more films, including the Disney television film The B.R.A.T. Patrol, Tim Thomerson, and Brian Keith; Like Father Like Son; White Water Summer, The War of the Roses ; the World War II film Memphis Belle; Toy Soldiers; Encino Man ; and the college football biopic Rudy, about the life-changing struggles and rewards of the titular character, Daniel Ruettiger.
- In 1994, Astin directed and co-produced (with his wife, Christine Astin) the short film Kangaroo Court, which received an Academy Award nomination for Best Live Action Short Film.
- Astin continued to appear in films throughout the 1990s, including the Showtime science fiction film Harrison Bergeron, the Gulf War film Courage Under Fire, and the Warren Beatty political satire Bulworth.
- Sean experienced another career breakthrough with his role as the epitome of loyal sidekicks, Samwise Gamgee, in Peter Jackson’s The Lord of the Rings trilogy, released in 2001, 2002 and 2003.
- Along with the many awards bestowed upon the trilogy (particularly its final installment The Return of the King), Sean received nominations for his own performance. He took home the Saturn Award for Best Supporting Actor, and awards from the Las Vegas Film Critics Society, the Seattle Film Critics, the Utah Film Critics Association, and the Phoenix Film Critics Society.
- In 2004, Sean authored the NY Times best seller There and Back Again: An Actor’s Tale chronicling his acting career with emphasis on his experiences filming the Lord of the Rings trilogy.
- Sean has been a long-distance runner since his teens. He successfully completed the Ironman World Championship Triathlon in Kona, Hawaii, in October 2015; the grueling event consisted of a 2.4 mile open ocean swim, a 112 mile bike race and a 26.2 mile marathon.
- He has served as a philanthropist on the board of several non-profit organizations, including the Creative Coalition, National Center for Family Literacy, and Los Angeles Valley College’s Patrons Association and Arts Council.
- From November 2024 to January 2025, Astin made his Broadway debut as Santa Claus in a revival of Elf the Musical, which ran at the Marquis Theatre.
Frequently Asked Questions
Who is Sean Astin?
He is an American Actor known for his portrayal of Samwise Gamgee in the Lord of the Rings trilogy. He also played Mikey Walsh in The Goonies and played the titular character in Rudy. He also had a recurring role in season two of Stranger Things and starred in Netflix’s No Good Nick.
What is the real name of Sean Astin?
His real name is Sean Patrick Duke.
What is the age of Sean Astin?
He is 55 years old (25th of February 1971).
What is Sean Astin Height?
The Height of Sean is 1.68 m (5′6¼”).
What is Sean Astin Weight?
The Weight of Astin is 85 kg (187 lbs).
What is the Net worth of Sean Astin?
He has an estimated net worth of $8 million dollars as of 2026.
Why is Sean Astin Famous?
He is best known for his portrayal of Samwise Gamgee in the Lord of the Rings trilogy. He also played Mikey Walsh in The Goonies and played the titular character in Rudy.