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).
Frank Novak Frank Novak (born March 4, 1945) is an American character actor who has made dozens of film and television appearances in "Independence Day", "Newsies", "Breast Men", "Seinfeld", "", "NYPD Blue", "Becker", "Charmed", "Diagnosis Murder", "Party of Five", "Monk", and "Las Vegas". He gave a memorable performance as General Douglas MacArthur in the miniseries "The Korean War" made for Chinese television, and played Henry Kissinger in the science fiction epic "Watchmen."