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 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.

Kaley Cuoco used a “Big Bug Theory” to lure her co-star and crush Johnny Galecki to her cabin.

Kaley Cuoco and Johnny Galecki are reflecting on their romance while starring in “The Big Bang Theory.” The actors and former couple recalled having feelings for one another while shooting the ...

For an upcoming oral history book on "The Big Bang Theory," Cuoco and Galecki recounted their relationship while making the hit show.

Johnny Galecki and Kaley Cuoco in 2018. (Photo: Kevin Mazur/Getty Images) The former couple, who dated for two years while working on the CBS hit comedy, spoke openly about how they couldn’t ...

Johnny Galecki made his ex-girlfriend Kaley Cuoco laugh out loud when he responded to her hint that their relationship was boring.

PEOPLE exclusively confirmed Alaina Meyer and Johnny Galecki's baby news earlier this month, with the couple saying they were "over the moon" to be parents Johnny Galecki and Alaina Meyer are a ...

Johnny Galecki and Alaina Meyer went public with their romance in September 2018 Johnny Galecki is going to be a dad! As his over decade-long run on Big Bang Theory comes to an end, the actor, 43 ...