The biography of David Astin has yet to be added to the Wikipedia page. But, his brother Mackenzie and Sean have an official page on Wikipedia.

Mackenzie made his acting debut in the television movie Lois Gibbs and the Love Canal when he was nine years old.

He has guest-starred on LOST, House, Psych, Grey’s Anatomy, and NCIS and has had recurring parts on Scandal, The Magicians, and Homeland. Mackenzie was cast in a recurring role in Netflix’s psychological thriller series You’s third season in November 2020.

Sean made his film debut as Mikey in The Goonies (1985) when he was 13 years old. Astin starred as Samwise Gamgee in Peter Jackson’s Lord of the Rings film trilogy, which included “The Fellowship of the Ring” (2001), “The Two Towers” (2002), and “The Return of the King.”