Today, we can’t stop watching Nick Braun, who plays Greg Hirsch, a.k.a. “Cousin Greg,” on HBO’s “Succession.” Braun fills us in on how the show changed his life, which popular nickname from “Succession” he gets called the most, and why he thinks his character stands by the unlikable Roy family. Plus, Braun gives us a live performance of the punk rock antibody song he made up during quarantine.