Roy Michael Joseph Dupuis (French pronunciation: ; born April 21, 1963) is a Canadian actor best known for his role as counterterrorism operative Michael Samuelle in the television series La Femme Nikita. He portrayed Maurice Richard on television and in film and Roméo Dallaire in the 2007 film Shake Hands with the Devil.
Dupuis was born in New Liskeard, Ontario to French-Canadian parents. From early infancy until he was 11 years old, Dupuis lived in Amos, Quebec in the Abitibi Regional County Municipality. Over the next three years he lived in Kapuskasing, Ontario, where he learned to speak English. His father was a travelling salesman for Canada Packers; his mother was a piano teacher. He has a younger brother and an older sister. When he was 14, after his parents divorced, his mother moved the family to Sainte-Rose, Laval, where he finished high school. After high school, he studied acting in Montreal, at the National Theatre School of Canada (L'École nationale de théâtre du Canada), from which he graduated in 1986.