Season 8
When viewers first met Richard Castle, a famous mystery novelist, he was creatively blocked. But when the NYPD questioned him in connection with a series of murders staged to imitate crime scenes from his books, Castle found inspiration in NYPD Detective Kate Beckett.
Once that initial case was solved, Castle and Beckett continued to investigate strange homicides in New York, combining Castle's writer intuition and Beckett's creative detective work.
In the Season 7 finale, Castle revealed some of his backstory for becoming a mystery writer, while Beckett was faced with a choice about her future - will she choose to pursue a new challenge or stay where she is?
Castle stars Nathan Fillion as Richard Castle, Stana Katic as NYPD Detective Kate Beckett, Tamala Jones as Medical Examiner Lanie Parish, Jon Huertas as NYPD Detective Javier Esposito, Seamus Dever as NYPD Detective Kevin Ryan, Penny Johnson Jerald as NYPD Captain Victoria Gates, Molly Quinn as Alexis Castle with Susan Sullivan as Martha Rodgers.
Executive producers are Terence Paul Winter, Alexi Hawley, Rob Bowman, Rob Hanning and Armyan Bernstein. Castle is produced by ABC Studios.