David Thornton is an American actor. He’s been acting since the 1980s, debuting in the TV film Sessions. During the ’90s, he landed several roles on the big screen, including Off and Running, Men of Respect, and Mrs. Parker and the Vicious Circle. He later played Earl Unger in Home Alone 3. In the 2000s, he had notable performances in the movies The Notebook, John Q, Alpha Dog, and My Sister’s Keeper. He also played Lionel Granger in 10 episodes of Law & Order: Special Victims Unit. In 2013, he appeared as himself in his wife’s reality series Cyndi Lauper: Still So Unusual.