Fan Casting Richard Castle in Scales: Mermaids are Real - A Tail of Crime in New York (2015)

He is a best-selling author who used to sidelines as a volunteer civilian consultant for the 12th Precinct and was briefly a P.I. He is the only son of Martha Rodgers and a man known as Jackson Hunt, and also the father of Alexis Castle. He is the working partner, and subsequently husband, of NYPD Captain Kate Beckett. He serves as her Second-in-command in the investigation into Gary Witts and his mermaid hunting activity.