The Broadway favorite ("Hamilton," "Spring Awakening") talks about working with the famously meticulous director David Fincher in Netflix series "Mindhunter" -- and also spills the truth about the rap that Lin-Manuel Miranda wrote for Kelli O'Hara, explains why he's not on social media and reveals with Miranda calls him "the Snowden of Broadway."Learn more about your ad choices. Visit megaphone.fm/adchoices