Johnny Galecki and Simon Helberg had a yearly tradition at San Diego Comic-Con that caused their bosses plenty of stress.

The Big Bang Theory star Johnny Galecki got to play a bad guy in the rather terrible horror sequel Rings, released in 2017.

Johnny Galecki rejected the offer for The Big Bang Theory five times before eventually accepting the role of Leonard.

Johnny Galecki and Kaley Cuoco in “The Big Bang Theory.” Michael Yarish Galecki’s Leonard married Cuoco’s Penny, with the on-screen couple tying the knot twice on the show.

“The Big Bang Theory” may have ended, but it lives on in the form of several spinoffs. Given the success of prequels “Young ...

The Big Bang Theory fans are set to be reintroduced to some characters in the upcoming spin-off Stuart Fails to Save the ...

The Big Bang Theory never really comes to an end and former stars of the show, Kaley Cuoco and Johnny Galecki, are back together again to remind us of that. Cuoco, who starred as Penny, and ...

Johnny Galecki wasn’t content to wait on an acting career. Born in Bree, Belgium, on April 30, 1975 to U.S. Air Force officer Richard Galecki and wife Mary Lou, the family moved to Chicago when ...

Johnny Galecki took a step back from Hollywood in 2019 after starring on 'Roseanne,' 'The Big Bang Theory' and more ...

Johnny Galecki talks about feeling “rudderless” after Roseanne originally wrapped and what a tough time it was for him.

HBO Max announced Wednesday that it ordered "Stuart Fails to Save the Universe," a "Big Bang Theory" spinoff, to series.

Johnny Galecki announced the birth of his son with girlfriend Alaina Meyer by way of a sweet picture of the baby's tiny hands clutching their fingers.