Book Sean Astin

Sean Astin is an American actor and union leader whose roles have spanned four decades of beloved movies and TV. He made his film debut at 13 as Mikey Walsh in The Goonies (1985), then appeared in White Water Summer, The War of the Roses, Memphis Belle (1990), Toy Soldiers (1991) and Encino Man (1992). His inspiring lead as Daniel Ruettiger in Rudy (1993) became a sports-movie classic, and a new generation knows him as the loyal Samwise Gamgee in The Lord of the Rings trilogy, which earned him the Saturn Award for Best Supporting Actor in 2003. Later films include Elvis Has Left the Building (2004) and Click (2006). On television he played Lynn McGill on 24, voiced Oso in Special Agent Oso and Raphael in Teenage Mutant Ninja Turtles, and won fans as Bob Newby in the second season of Stranger Things. He also earned an Academy Award nomination in the live action short category for Kangaroo Court. Astin has won a Screen Actors Guild Award and in 2025 was elected the fourth national president of SAG-AFTRA, bringing warmth, optimism and insight into the craft to every audience.