The Big Bang Theory has many great characters, but one of the most recognizable nearly had a totally different main character.

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.

Penny has a strange relationship with her family in The Big Bang Theory, and one mystery doesn't help matters.

Laurie Metcalf is a living TV legend, and her casting on The Big Bang Theory allowed for a Roseanne reunion of sorts in front ...

While The Big Bang Theory has plenty of great characters, not all of them stick around until the end of the show.

Life turns upside down for Leonard Hofstadter when a girl named Penny ... Only the biggest fans of The Big Bang Theory will be able to answer all these Leonard questions correctly.

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 ...

Johnny Galecki had appeared in multiple television shows and films before joining the cast of The Big Bang Theory. The ...

The Big Bang Theory’s Sheldon Cooper and Leonard Hofstadter — two of the most iconic characters on television — were not named randomly. Instead, they were actually paying tribute to an acting legend.

six years after the finale of their CBS sitcom “The Big Bang Theory.” The series followed best friends, roommates and physicists Sheldon Cooper (Jim Parsons), Leonard Hofstadter (Galecki ...