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 Victor Webster Josh Davidson Guest Star Adrian Pasdar Guest Star Max Martini Guest Star Ken Baumann Ashley Guest Star Paige Rowland Loreen Carter Guest Star Bahar Soomekh Guest Star Lochlyn Munro Guest Star Justice Gamble Bartender Guest Star Brian Goodman Guest Star Chadwick Boseman Guest Star Randall Batinkoff Brad Williams Guest Star Scott Paulin Guest Star Andrew W. Marlowe Executive Producer, Writer Rob Bowman Executive Producer, Director Laurie Zaks Executive Producer David Amann Executive Producer, Writer Alexi Hawley Writer David Grae Writer Scott Williams Writer Will Beall Writer Terri Miller Writer Terence Paul Winter Writer Elizabeth Davis Writer Moira Kirland Writer Matt Pyken Writer John Terlesky Director Bryan Spicer Director Jeff Bleckner Director Bill Roe Director