Rachel Keller, left, and Dan Stevens, two of the stars of FX series Legion, are seen one of the many sets built in an enormous warehouse in Burnaby, B.C. Rachel Keller, left, and Dan Stevens, two of the stars of FX series Legion, are seen one of the many sets built in an enormous warehouse in Burnaby, B.C. Michael Wylie is in production designers’ heaven. As he leads reporters on a tour of sets he designed and had built for the new TV series Legion , he says he has been given a freer-than-usual hand to let his imagination run wild.