Nathan Fillion Rick Castle Actor Stana Katic Det. Kate Beckett Actor Susan Sullivan Martha Rodgers Actor Molly C. Quinn Alexis Castle Actor Penny Johnson Capt. Victoria Gates Actor Tamala Jones Lanie Parish Actor Jon Huertas Det. Javier Esposito Actor Seamus Dever Det. Kevin Ryan Actor Juliana Dever Guest Star Fredric Lehne Guest Star Mark Harelik Guest Star Vernee Watson Guest Star Philipp Karner Guest Star Andrew W. Marlowe Executive Producer Rob Bowman Executive Producer Laurie Zaks Executive Producer David Amann Executive Producer Rob Hanning Writer Bill Roe Director