Nathan Fillion Richard Castle Actor Stana Katic NYPD Captain Kate Beckett Actor Susan Sullivan Martha Rodgers Actor Molly C. Quinn Alexis Castle Actor Penny Johnson Capt. Victoria Gates Actor Tamala Jones Lanie Parish Actor Jon Huertas NYPD Detective Javier Esposito Actor Seamus Dever NYPD Detective Kevin Ryan Actor Lisa Edelstein Guest Star Yancey Arias Guest Star Jocko Sims Guest Star Myko Oliver Guest Star Michael Bofshever Guest Star Glenn Morshower Guest Star Andrew W. Marlowe Executive Producer Rob Bowman Executive Producer Laurie Zaks Executive Producer David Amann Executive Producer David Grae Writer Thomas J. Wright Director