Jamie Roy and Harriet Slater are taking on the role of Jamie Fraser's parents in the new Outlander prequel, Outlander: Blood of My Blood - so how well do they know their onscreen son? Roy, 32, and Slater, 30, don't actually interact with Jamie (Sam Heughan) on the new Starz series (since it takes place before he is born), but the actors did their homework. "We both started watching [Outlander] when we got the audition," Slater told Us Weekly during a joint interview with Roy. "[Finishing the whole binge] is a badge we wear with pride," he said.