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

Do you remember that Leonard Hofstadter loved Superman, Dell computers and that he'd never celebrated his birthday? The Big Bang Theory remains one of the longest-running sitcoms in history.

It may not sound young, but Leonard was years ahead of his peers. Johnny Galecki as Leoanrd Hofstadter and Jim Parsons as Sheldon Cooper in ‘The Big Bang Theory’ | Cliff Lipson/CBS via Getty ...

The Big Bang Theory is officially ending after ... there is one character I really couldn’t get on board with. Leonard Leakey Hofstadter. Yes, he’s insecure, we get it… (Picture: CBS ...

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.

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

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.

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 Johnny Galecki, who plays Leonard Hofstadter on the show, sat down with myTV38. Q: Who do you think watches the show? Q: Why do you think viewers like the show so much?

Dr. Leonard Leakey Hofstadter. Only a Ph.D., not OMG. While his roommate, Sheldon Cooper has an otherworldly popularity amongst fans, in The Big Bang Theory universe Leonard was a more likeable ...