He first appeared in the movie Witness playing the role of an Amish farmer. His role as Master Chief John Urgayle touched the heart of many viewers.
Born to a Danish father and American mother, he spent much of his early childhood traveling with his family and spent several years in Venezuela, Argentina, and Denmark before returning to New York, where he studied at St Lawrence University.
Viggo has also campaigned for Dennis Kucinich in the 2008 United States presidential election.
Viggo was born to an American mother and Danish father. He attended his primary school at Argentina where he became fluent in Spanish language.
He was married to his girlfriend Exene Cervenke, the singer of a Punk band X.
Mortensen and his wife Exene have a son named Henry Mortensen born on January 28, 1988.