Scotland’s Richard Rankin Is Well Known for Playing Roger Mackenzie in “Outlander”. the Second Season of “Outlander” Introduced Rankin as a Recurrent Character. Prior to “Outlander, ” Rankin Performed in Several Tv and Film Roles. He Appeared in “Burnistoun, ” “Silent Witness, ” “The Crimson Field, ” “From Darkness, ” and “Thirteen. ”