Nathan Fillion has a brother named Jeff Fillion. Nathan Fillion has not revealed enough identifying information regarding his brother. However, his parents are presumed to be of Canadian nationality.

There is no readily available information regarding Nathan Fillion’s brother’s date of birth, age, height, body measurements, educational background, academic qualifications, and childhood.

Nathan Fillion is a Canadian-American actor best known for playing the leading roles of Captain Malcolm “Mal” Reynolds on Firefly and its film continuation Serenity, and Richard Castle on Castle.

In 2003, Nathan Fillion had a recurring role as Caleb in the final five episodes of Joss Whedon’s series Buffy the Vampire Slayer. Fillion starred in the romantic comedy film Waitress, and in White Noise 2: The Light.

Nathan Fillion’s role as Bill Pardy in James Gunn’s 2006 horror film Slither got him a 2006 Fangoria Chainsaw Awards nomination in the category of Dude You Don’t Wanna Mess With. On February 17, 2013, Fillion hosted the 2013 WGA West Coast Awards.