James MacDonald

When Mary's witness seems to have died in a car accident, she thinks it may be related to his past life.

The team are forced to explore Morgan's past to prove his innocence when he is arrested for murder in Chicago.

Car is hired by his ex-wife to investigate an arson case which a childhood friend has been accused as the suspect.

The team go after Lorelei Martins again after she uses deadly tactics to avenge the death of her sister, and Jane tries to use her to get to Red John.

Castle is certain a woman's ritualistic murder is tied to a Da Vinci Code type conspiracy.

Phil Coulson and his team of agents find themselves without anyone they can trust, after realising that they are trapped with a traitor in their midst.