Harris appeared in the Roundabout Theatre Company's production of Assassins and starred in renowned productions of Sweeney Todd, All My Sons, and Rent. He stars in the CBS sitcom How I Met Your Mother and previously starred in the title role of ABC's Doogie Howser, M.D.. He has hosted both the Emmy Awards and Tony Awards.
Glee stars Matthew Morrison, Lea Michele, Jane Lynch, Cory Monteith, Jessalyn Gilsig, Dianna Agron, Chris Colfer, Jayma Mays, Mark Salling, and Jenna Ushkowitz. Tony Award winners Kristin Chenoweth and Idina Menzel and Tony nominee Jonathan Groff are among those who will appear in the show.