Nathan Fillion: Nathan Fillion. Actor: Castle. Nathan Fillion was born on 27 March 1971 in Edmonton, Alberta, Canada. He is the son of Cookie (Early) and Bob Fillion, both retired English teachers, and has an older brother, Jeff. His father is of French-Canadian descent, and his mother is of English, German, Finnish, and Norwegian ancestry. In Canada, he attended Holy Trinity Catholic High School, Concordia University College of Alberta and University of...