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Louis Ferreira (born Luís Henrique da Rocha Ferreira; born 20 February 1966) is a Canadian actor. Ferreira is known for his roles in Stargate Universe as Colonel Everett Young, serial killer Ray Prager in the first season of Durham County, FBI Assistant Director John Pollock in Missing, and Art Blank in Saw IV, Saw V, and Saw 3D. He starred in the CTV series Motive as homicide detective Oscar Vega. Before 2008, he was credited under the stage name Justin Louis. Wikipedia