Brian Stack

Brian Stack is an American actor, comedian, and writer best known for his sketch comedy work. He worked on all three late-night talk shows hosted by Conan O'Brien including Late Night with Conan O'Brien and The Tonight Show with Conan O'Brien on NBC, and Conan on TBS. Stack left Conan in April 2015 to join the writing staff of the CBS series The Late Show with Stephen Colbert.