People News Johnny Galecki wishes Simon Helberg a happy 38th birthday 12/13/2018 Johnny Galecki dedicated a playful post to Simon Helberg on his 38th birthday. Read More RELATED NEWS From Tokyo to Las Vegas: Taylor Swift's flight to Super Bowl LVIII'Chucky' Season 3 trailer released by USA Network and Syfy'Quantum Leap' Season 2 visits L.A. riots, Salem Witch Trials, and more TAGS: Jim Parsons Johnny Galecki Simon Helberg The Big Bang Theory