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 Carly Rae Jepsen Music Performer Jaleel White Guest Star Gregory Harrison Guest Star James Eckhouse Guest Star Joy Osmanski Guest Star Mark Rolston Guest Star Andrew W. Marlowe Executive Producer David Amann Executive Producer Rob Bowman Executive Producer Armyan Bernstein Executive Producer Rob Hanning Executive Producer Terri Miller Executive Producer Terence Paul Winter Writer Jeannot Szwarc Director