Mark Ruffalo, Chris Matthews, Gilbert Gottfried, Thundercat

The Late Show with Stephen Colbert – Season 3

Stephen acknowledges the terrorist attack in Lower Manhattan. Thundercat sits in with the band and provides musical accompaniment. Mark Ruffalo discusses ‘Thor: Ragnarok’. Chris Matthews discusses recent politics and his new book, ‘Bobby Kennedy: A Raging Spirit’. Gilbert Gottfried discusses ‘Gilbert’.