"Actor Nat Wolff and actress Laura Dern are joining The Fault in Our Stars movie based on the book by John Green.
Wolff will play Isaac, Augustus’ best friend. The actor had hinted at his involvement with the film several weeks ago. He is no stranger to working with director Josh Boone; he starred in his first movie Stuck in Love which hit theaters last month. Wolff had originally auditioned to play Gus..
Dern will play Hazel’s mother. The actress most recently starred in HBO’s Enlightened, which we were sorry to see get canceled after season 2."