Which actor played the role of Bob Newby in the season two of the Netflix series "Stranger Things"?

Sean Astin (born February 25, 1971) is an American actor, voice actor, director, and producer. His acting roles include Samwise Gamgee in "The Lord of the Rings" trilogy (2001–2003), Mikey Walsh in "The Goonies" (1985), Raphael in "Teenage Mutant Ninja Turtles" (2012), Daniel "Rudy" Ruettiger in "Rudy" (1993), and Doug Whitmore in "50 First Dates" (2004).

In 2017, Astin played the role of Bob Newby in the season two of the Netflix series Stranger Things; flashback scenes in the series' third season included him as well.