Actor Nathan Fillion is returning to TV! He recently sat down with emmy magazine and reminisced about his most memorable roles, ahead of his debut as John Nolan in “The Rookie.” While Nathan is known for many of his projects, from “One Life to Live” to “Castle,” his role as “Firefly’s” Captain Malcolm Reynolds remains a fan favorite. He continued, “I was flying spaceships and shooting guys and riding horses and yelling at people and getting beat up.