An early interaction between Penny (Kaley Cuoco) and Sheldon (Jim Parsons) on The Big Bang Theory proved to be the key to ...

The show is about a group of four geeky friends - Leonard Hofstadter, Sheldon Cooper, Howard Wolowitz, and Raj Koothrapalli - played by Johnny Galecki, Jim Parsons, Simon Helberg, and Kunal Nayyar ...

Johnny Galecki (Leonard Hofstadter), Jim Parsons (Sheldon Cooper), Kaley Cuoco (Penny Hofstadter), Kunal Nayyar (Raj Koothrappali), Simon Helberg (Howard Wolowitz), Mayim Bialik (Amy Farrah Fowler) ...

When The Big Bang Theory first introduced Leonard Hofstadter and Penny, few could have predicted that their unlikely relationship would become one of the series' greatest things.

Sheldon Cooper (Jim Parsons), Leonard Hofstadter (Johnny Galecki), Howard Wolowitz (Simon Helberg), and Raj Koothrappali (Kunal Nayyar) form the core friend group with Kaley Cuoco's Penny ...

The Big Bang Theory's Leonard Hofstadter was the glue that held his group of friends together. No one helped and supported Sheldon and his unusual demands more than Leonard. He would even stick to ...

Life turns upside down for Leonard Hofstadter when a girl named Penny moves across the hall from him and Sheldon. Soon, Leonard falls madly in love with this beautiful wannabe actor. Though he ...

Of all the different characters on both shows though, Ross Geller and Leonard Hofstadter stand out as the two linchpins of both respective groups of friends thanks to their warmth, sensitivity ...