Nathan Fillion Richard Castle Actor Stana Katic NYPD Captain Kate Beckett Actor Susan Sullivan Martha Rodgers Actor Jon Huertas NYPD Detective Javier Esposito Actor Tamala Jones Lanie Parish Actor Seamus Dever NYPD Detective Kevin Ryan Actor Molly C. Quinn Alexis Castle Actor Ruben Santiago-Hudson Captain Roy Montgomery Actor Patrick Bauchau Caine Powell Guest Star Caterina Scorsone Joanne Delgado Guest Star Nick Chinlund Evan Mitchell Guest Star Joseph C. Phillips Mayor Guest Star Katie Lowes Rachel Maddox Guest Star Erik Van Wyck Paul Reynolds Guest Star Elizabeth Ann Bennett Ruth Guest Star Andrew W. Marlowe Executive Producer Armyan Bernstein Executive Producer Barry Schindel Executive Producer Rob Bowman Executive Producer Laurie Zaks Executive Producer Will Beall Writer Dean White Director