After a serial killer imitates the plots of his novels, successful mystery novelist Richard "Rick" Castle receives permission from the Mayor of New York City to tag along with an NYPD homicide investigation team for research purposes.
Nathan Fillion
Richard Castle
Stana Katic
Kate Beckett
Molly C. Quinn
Alexis Castle
Jon Huertas
Javier Esposito
Seamus Dever
Kevin Ryan
Susan Sullivan
Martha Rodgers
