Nathan Fillion

Nathan Fillion is a screen and stage actor, best known for his role as Richard Castle on the ABC series Castle, and as Captain Malcolm Reynolds in the television series Firefly and its feature film continuation, Serenity. Alongside his work in television, Fillion has acted in films like Slither and Trucker, and Dr. Horrible's Sing-Along Blog; voice acted in video games Halo 3: ODST and Halo: Reach.