Johnny Galecki was already performing on stage and in front of cameras as a child. However, he became famous primarily for his role as Leonard Hofstadter in the sitcom 'The Big Bang Theory'.

Given the popularity of "Christmas Vacation," it may sound strange that Galecki only played Rusty Griswold once, but that one-and-done is all part of the series' charm.

Johnny Galecki and Morgan Galecki are married, the actor revealed in an 'Architectural Digest' feature. The couple also recently welcomed a baby girl.

WGN Radio’s Dave Plier celebrates the 35th anniversary of holiday film classic ‘National Lampoon’s Christmas Vacation with special guests Chevy Chase (Clark Griswold), Beverly D’Angelo (Ellen Griswold ...

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.

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 ...

Kaley Cuoco admits she had a "big crush" on Galecki right when they started working on the show. He says he had "zero idea." According to the oral-history book "The Big Bang Theory: The Definitive ...

Johnny Galecki. Jean Baptiste Lacroix/Getty Images. Johnny Galecki’s move to Nashville in 2020 sparked a series of life changes, including marriage and a second baby.. Galecki confirmed to ...