Peter Billingsley

Peter Billingsley (born April 16, 1971), also known as Peter Michaelsen and Peter Billingsley-Michaelsen, is an American actor, director, and producer.
He is best known for his role as Ralphie Parker in the 1983 movie "A Christmas Story", Jack Simmons in "The Dirt Bike Kid", Billy in "Death Valley", and as Messy Marvin in the Hershey's chocolate syrup commercials during the 1980s.