Hader, who became famous as a writer and performer on 'Saturday Night Live,' now stars in the HBO series 'Barry.' Hader plays a Marine who suffers from depression and PTSD ever since returning from Afghanistan. While working as a hit man in Los Angeles, he discovers that he wants to pursue acting instead. Hader speaks with Terry Gross about writing the series with Alec Berg, struggling with severe anxiety while on 'SNL,' and his love of old movies.