Sean Astin portrayed Mikey, the courageous and resourceful leader of the Goonies, who rallies his friends during their treasure-seeking adventure. His brother Brand, played by Josh Brolin, is characterized by his adventurous spirit and protective nature. Both actors have continued successful careers, with Brolin gaining acclaim for his roles in films like “Avengers: Endgame” and Astin remaining a favorite among fans for his work in “The Lord of the Rings.”