Nathan Fillion

Nathan Fillion is a Canadian-American actor and voice actor best known for the lead roles of Captain Malcolm "Mal" Reynolds in the Fox series Firefly and its feature film continuation, Serenity, as well as Richard Castle on the ABC series Castle. Fillion has acted in traditionally distributed films like Slither and Trucker, Internet-distributed films like Dr. Horrible's Sing-Along Blog, television soap operas, sitcoms and theater.