John Hartman is a former member of The Second City Mainstage in Chicago, where he wrote and performed in several revues, and won the Joseph Jefferson Award for Best Actor. He has also performed solo shows at the TBS Just for Laughs Festival, UCB Theater in New York and the Comedy Central Stage in Los Angeles, earning Time Out Critic’s Picks. Most recently he has appeared in recurring roles on Young Sheldon (CBS), The Good Place (NBC), Trial & Error (NBC), Scorpion (CBS), and he can currently be seen on the CBS comedy Ghosts.