Nathan Fillion's Pets

Nathan Fillion is a Canadian actor best known for his roles as Richard Castle on the ABC series “Castle” and as Captain Malcolm Reynolds on the science fiction series “Firefly” and its film continuation, “Serenity.” He has also appeared in a number of other television shows and films, including “Desperate Housewives,” “Slither,” and “Dr. Horrible’s Sing-Along Blog.” Fillion is known for his versatility as an actor and his good-natured personality, and has a large and dedicated fan base. In addition to his acting career, Fillion is also an avid voice actor and has lent his voice to a number of animated series and video games.