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 Lyle Lovett Agent Westfield Guest Star Lance Henriksen Benny Stryker Guest Star Jeanette Brox Ayyana Holder Guest Star Karl T. Wright Dr. Chuck Vaughn Guest Star Neil Hopkins Ted Carter Guest Star Nicole Bilderback Joy Harrison Guest Star Andrew W. Marlowe Executive Producer Rob Bowman Executive Producer Laurie Zaks Executive Producer David Amann Executive Producer Shalisha Francis Writer Bethany Rooney Director