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

The Big Bang Theory built a big universe around its central leads, but this set of characters was noticeably absent for most of the series.

The Big Bang Theory fans showed their love for the show with their reactions to this season 1 moment featuring Penny (Kaley ...

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.

When The Big Bang Theory first aired in 2007, Penny rapidly became a central cast member of the sitcom. Although her inclusion helped balance the social awkwardness of the group with attractiveness ...

The Big Bang Theory’s creator’s comment on Penny’s botched portrayal in season 1 makes one Penny story in The Big Bang Theory season 12 all the more puzzling. Penny has indubitably been a central ...

Melissa Rauch joined the cast of The Big Bang Theory in its third season as Bernadette, Penny's co-worker at The Cheesecake Factory. Although at first Bernadette and Howard don't get along ...

something Galecki's "Big Bang Theory" character, scientist Leonard Hofstadter, would surely understand. (By coincidence, Leonard and his "Big Bang" wife, Penny, revealed they were having a baby in ...

It was all love for The Big Bang Theory when the series ended ... who falls in love with his neighbor Penny (Kaley). Away from the cameras, the actor is more private about his relationships.