Dillon Francis Casey (born October 29, 1983) is an American-born Canadian actor and producer. He is best known for his role as Sean Pierce in The CW action-thriller television series Nikita. Casey was raised in Oakville, Ontario. His father, Richard, is an urologist, and his mother, Patrice, is an image consultant. After graduating from Oakville Trafalgar High School, Casey graduated from McGill University with a Bachelor of Science degree in 2005 and received a Master of Economics degree from the University of Toronto. Casey relocated to Los Angeles, California for his career in January 2009.