The Big Bang Theory's lead stars, Kaley Cuoco and Johnny Galecki, reunite on-screen in a promotional video for a mobile game.

Former The Big Bang Theory co-stars Kaley Cuoco and Johnny Galecki reunited for a Royal Kingdom ad that gives new meaning to ...

Night Court wins the guest star game every single time.

Our whole universe is in a hot, tense state right now. Thankfully, Kaley Cuoco and Johnny Galecki have reunited to give us ...