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 Darby Stanchfield Meredith Guest Star Nicki Micheaux Michelle Guest Star Aldis Hodge Azi Guest Star Dohn Norwood Charles Oni Guest Star Michael Benyaer Oscar Guest Star Robert Okumu Mukhta Baylor Guest Star Debbie Campbell Diana Edwards Guest Star Andrew W. Marlowe Executive Producer Armyan Bernstein Executive Producer Barry Schindel Executive Producer Rob Bowman Executive Producer Laurie Zaks Executive Producer Gabrielle G. Stanton Writer Harry Werksman Writer Jamie Babbit Director