Attention: Spoilers! This section is not spoiler-free. If you've only started watching the show I suggest skipping the following pages for a better experience. :)

The Big Bang Theory is an American situation comedy show created by Chuck Lorre and Bill Prady. Its first season premiered in 2007. The show follows the lives of a group of scientists working at Caltech University and their newly acquired friend Penny, an aspiring actress who serves as the opposite pole of the group. The show follows the group's relationships - especially Leonard and Penny's on/off romance - and careers.

• Main Characters
• Supporting Characters
• Seasons
• Recurring Topics