Brian Stack earned an Emmy nomination for Outstanding Writing for a Variety Series for the 70th annual Emmy Awards, for his work on "The Late Show with Stephen Colbert." He has worked for the show’s writing team since 2015, as well as providing voice work for Cartoon Donald Trump and the Ghost of Abraham Lincoln on the show.

Stack wrote for Conan O’Brien from 1997 to 2015 and played several characters in sketches on the show. He received an Emmy Award nomination in writing every year since 1998. In 2007, he won an Emmy for Outstanding Writing for a Variety, Music or Comedy Program.

Stack worked at the Indiana Daily Student during his time at IU and earned a degree in telecommunications. He started his career with Chicago-based improv comedy group Second City before eventually joining the "Late Night with Conan O’Brien" writing team in 1997. (July 2018)