After attending Carnegie Mellon University and several seasons of summer stock, Glenn moved to New York. Shortly thereafter he landed a job in an NBC movie of the week playing tail gunner George Caron in Enola Gay: The Men, the Mission, the Atomic Bomb. The production was based out of Los Angeles and produced by Franklyn R. Levy and Leslie Moonves. Glenn relocated to Los Angeles and over the next several years joined the Ensemble Studio Theater/West, studied, and landed several television and theater projects. Glenn moved to Seattle in 1986 for personal reasons. While there he worked in the software industry for and played in a band with Microsoft co-founder Paul Allen. He then became an entrepreneur, consultant, marketing executive, author, and father. But acting never left his blood, so in 2014 Glenn relocated to Los Angeles to start all over again.