Johnny Galecki

Acting

• 
  Roseanne1988David Healy
• 
  National Lampoon's Christmas Vacation1989Rusty Griswold
• 
  Prancer1989Billy Quinn
• 
  I Know What You Did Last Summer1997Max Neurick
• 
  Suicide Kings1997Ira Reder
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  Vanilla Sky2001Peter Brown
• 
  Chrystal2004Barry
• 
  Happy Endings2005Miles (uncredited)
• 
  The Big Bang Theory2007Leonard Leakey Hofstadter
• 
  Hancock2008Jeremy
• 
  In Time2011Borel
• 
  CBGB2013Terry Ork
• 
  Unraveling the Mystery: A Big Bang Farewell2019Self - Host
• 
  A Dog's Journey2019Henry Montgomery