VIDEO : Dwayne Johnson's 'Jumanji' Sequel Adds 'Naked Brothers Band' Star

New casting details have been announced for Sony's prominent Jumanji sequel, as Alex Wolff, best known for starring with his brother Nat Wolff in Nickelodean's, The Naked Brothers Band, has joined the cast alongside Dwayne Johnson. Wolff will play a boy named Spencer, whose avatar in the game is being played by Johnson , portraying Dr. Smolder Bravestone. The book by Chris Van Allsburg, tells the story of a magical board game that brings jungle animals into the lives of its players.