In The Big Bang Theory episode “The Comet Polarization,” while Penny (Kaley Cuoco) makes an astronomical discovery on the rooftop of the apartment building, Stuart (Kevin Sussman) gets an unexpected visitor to his comic book store, ComicCenter. The visit from New York Times bestselling writer Neil Gaiman (who plays himself) puts Stuart’s store on the map.
Denise is portrayed by Lauren Lapkus. She’s known for her roles on HBO’s Crashing (Pete’s wife Jess, see photo below), Life in Pieces (Cindy), Orange Is the New Black (Susan Fischer), House of Lies (Benita Spire), and Are You There, Chelsea? with OISTNB star Laura Prepon (Dee Dee), among others. In 2017, Lapkus was nominated for a Primetime Emmy Award for playing Samantha Newman on The Earliest Show. The Big Bang Theory airs Thursdays at 8pm on CBS, right before Young Sheldon. [Binge watch The Big Bang Theory whenever you want on CBS All-Access.]