One of the stars of The Big Bang Theory passed on the show five times before ultimately relenting and joining the series.

The Big Bang Theory has been a hit since its premiere in September 2007. The show revolved around the lives of a group of characters- Johnny Galecki’s Leonard, Jim Parsons’ Sheldon, Simon Helberg’s ...

It's hard to imagine Johnny Galecki playing anyone but Leonard Hofstadter in "The Big Bang Theory," but the co-creators ...

Kunal Nayyar revealed a behind-the-scenes secret about Johnny Galecki’s odd habit on set, and it’s not what fans expected!

Johnny Galecki is an American actor ... He is best known for playing Leonard Hofstadter on The Big Bang Theory (2007-2019). Galecki earned an Emmy Award nomination for his performance on the ...

The Big Bang Theory star, Johnny Galecki. You’ll probably recognise him as Leonard Hofstadter, lovably geeky physicist in the ever-popular Big Bang Theory. But in real life, Johnny Galecki is a ...

American sitcom The Big Bang Theory centers around friends Leonard Hofstadter (Johnny Galecki), Sheldon Cooper (Jim Parsons), Penny Teller (Kaley Cuoco), Howard Wolowitz (Simon Helberg ...