Nathan Fillion Richard Castle Actor Stana Katic NYPD Captain Kate Beckett Actor Susan Sullivan Martha Rodgers Actor Molly C. Quinn Alexis Castle Actor Ruben Santiago-Hudson Captain Roy Montgomery Actor Tamala Jones Lanie Parish Actor Jon Huertas NYPD Detective Javier Esposito Actor Seamus Dever NYPD Detective Kevin Ryan Actor Currie Graham Stanford Raynes Guest Star Navi Rawat Rachel Walters Guest Star Erick Avari Rupert Bentley Guest Star Gil Birmingham Cacaw Te Guest Star Steve Cell Charles Taylor Guest Star Al Vicente Norton Grimes Guest Star Kevin Foster Will Medina Guest Star Andrew W. Marlowe Executive Producer Armyan Bernstein Executive Producer Barry Schindel Executive Producer Rob Bowman Executive Producer Laurie Zaks Executive Producer Alexi Hawley Writer Bill Roe Director