Castle Season 4 Characters & Cast — No Spoilers
Every character in Castle season 4 with photos and the actors who play them, including Nathan Fillion, Stana Katic, Molly C. Quinn — spoiler-free, nothing from later seasons.
- Richard Castle — played by Nathan Fillion
- Kate Beckett — played by Stana Katic
- Alexis Castle — played by Molly C. Quinn
- Javier Esposito — played by Jon Huertas
- Kevin Ryan — played by Seamus Dever
- Martha Rodgers — played by Susan Sullivan
- Lanie Parish — played by Tamala Jones
- Victoria Gates — played by Penny Johnson Jerald
- Carter Burke — played by Michael Dorn
- Michael Smith — played by Geoff Pierson
- Sophia Turner — played by Jennifer Beals
- Martin Danberg — played by Josh Stamberg
- Thomas Gage — played by David Chisum
- Ann Hastings — played by Valerie Azlynn
- Jones — played by Russell Edge
- West Side Wally — played by Lorin McCraley
- Jenny Duffy-O'Malley — played by Juliana Dever
- Serena Kaye — played by Kristin Lehman
- John Davis — played by Dean Norris
- Addison Smith — played by Fredric Lehne
All seasons of Castle: full spoiler-free character guide