Here’s the thing: for the entire run of the show, Penny is just… Penny. No last name. She’s introduced as “Penny from across the hall,” and the guys—Sheldon, Leonard, Howard, Raj—never once ask for her surname. Isn’t that bizarre? Imagine meeting your future wife and only calling her by her first name for years. That’s almost as weird as Sheldon’s spot on the couch.
It’s like the show wanted her to exist in a little bubble. Her identity is pure, simple, and unbothered by family ties. In a world full of complicated last names like “Hofstadter” and “Koothrappali,” Penny is just Penny. It makes her feel more like a force of nature than a regular person, right?
