Elenco principal da temporada 8

1. 

   Nathan Fillion

   Richard Castle

2. 

   Stana Katić

   Kate Beckett

3. 

   Molly C. Quinn

   Alexis Castle

4. 

   Jon Huertas

   Javier Esposito

5. 

   Seamus Dever

   Kevin Ryan

6. 

   Susan Sullivan

   Martha Rodgers

7. 

   Tamala Jones

   Lanie Parish

8. 

   Penny Johnson Jerald

   Victoria Gates

Convidados Especiais 15

1. 

   Dean Norris

   John Davis

2. 

   Darren Pettie

   Trapper John

3. 

   Ian Kahn

   Sal Martino

4. 

   Jack Laufer

   Mr. Davenport

5. 

   Ty Upshaw

   Dr. Huxtable

6. Noa Dori

   Dr. Quinn

7. 

   Jonah Wharton

   Dr. Howser

8. 

   Dawn-Lyen Gardner

   Simone Jenkins

9. 

   Barry Livingston

   Abe

10. Aimee Parker

    Grace

11. 

    Frank Birney

    Father McCaskey

12. 

    Matt Medrano

    Officer Monfriez

13. 

    Tatum Shank

    Officer Billups

14. Holly Daniels

    Tanya Brandt

15. Quinn Friedman

    Connor

Equipa técnica 2