National Lampoon's Christmas Vacation is a film that stars an actor known for playing Dr. Leonard Hofstadter in what CBS sitcom?
Johnny Galecki John Mark Galecki (born April 30, 1975) is an American actor. He is known for playing David Healy in the ABC sitcom "Roseanne" from 1992 to 1997 and Dr. Leonard Hofstadter in the CBS sitcom "The Big Bang Theory" since 2007. Galecki also appeared in the films "National Lampoon's Christmas Vacation" (1989), "Prancer" (1989), "Suicide Kings" (1997), "I Know What You Did Last Summer" (1997), "Bookies" (2003), and "In Time" (2011).
Adam Brody Adam Jared Brody (born December 15, 1979) is an American actor, writer, musician and producer. He is best known for his role as Seth Cohen on "The O.C.". Brody has appeared in the films "Mr. & Mrs. Smith" (2005), "Thank You for Smoking" (2006), "In the Land of Women" (2007), "Jennifer's Body" (2009), "Cop Out" (2010), "Scream 4" (2011), "Lovelace" (2013), "Life Partners" (2014), and "Sleeping with Other People" (2015).