Welcome to Castle-Fans.tv, a fan site for ABC’s hit crime tv show, Castle – starring Nathan Fillion and Stana Katic. The show follows mystery writer, Richard Castle, who shadows NYPD homicide detective, Kate Beckett, on murder investigations while basing his newest book character off of her. The entire cast is brilliant and it is impossible not to love all of the characters; not to mention, the romance between the two lead characters. In the conclusion of season four, the duo finally gave in to their feelings and have continued their romance throughout season five. In the final episode of season five, Castle shocked us all and proposed to Beckett. Castle ran for eight seasons and finished its final season in 2016. You can purchase all eight seasons of Castle on DVD.