Susan Sullivan in "Castle" - Season Four

Susan Sullivan will continue starring as Martha Rodgers in the upcoming season four of ABC's TV show "Castle" with Nathan Fillion and Stana Katic.

The new season of "Castle" will premiere next Monday in the United States.

In the first episode, Detective Beckett fights for her life as Castle, plagued by guilt over his role in the events, struggles to uncover who's behind her brutal shooting.

Here are some Cast Pictures from the new season:

 and here's a short Sneak Peek: