Actor Darren Barnet joins TODAY to talk about joining the cast of “Chicago Med” where he plays doctor John Frost. He shares the advice he got from Dermot Mulroney, how he manages to memorize all the medical jargon and how he's faring with the Chicago winter. Barnet also discusses his new psychological thriller "Apophenia" that he produced and stars in and that he describes as "The Shining" meets "Raging Bull." » Subscribe to TODAY: youtube.com/@TODAY About: TODAY brings you the latest headlines and expert tips on money, health and parenting. We wake up every morning to give you and your family all you need to start your day. If it matters to you, it matters to us. We are in the people business. Subscribe to our channel for exclusive TODAY archival footage & our original web series. Connect with TODAY Online! Visit TODAY's Website: today.com Find TODAY on Facebook: facebook.com/today Follow TODAY on Twitter: twitter.com/TODAYshow Follow TO...