Lisa Edelstein will guest-star on ABC dramedy 'Castle'

“House” actress Lisa Edelstein is heading to the ABC dramedy “Castle” for a multi-episode arc.

Edelstein’s character for the show’s sixth season will be Rachel McCord, a federal investigator who may play a part in decisions main character Kate Beckett (Stana Katic) will be making about her life. Beckett was deciding whether or not to move to Washington D.C. and mulling what to do about the marriage proposal from writer Richard Castle (Nathan Fillion).

Edelstein will first appear in the sixth season premiere. It was also recently announced that the actress will voice a character on the Nickelodeon animated series “The Legend of Korra.”

Since Edelstein left the Fox drama “House” in 2011, she has guest-starred on various shows including the CBS legal drama “The Good Wife,” CBS’s take on the Sherlock Holmes stories titled “Elementary,” and the ABC soap “Scandal.” She had previously guest-starred on the 1996 TV animated adaptation of “Superman” and on the NBC drama “The West Wing” as well as appearing in the 2000 romantic comedy “What Women Want,” starring Mel Gibson and Helen Hunt. On “House,” Edelstein portrayed Dr. Lisa Cuddy, the administrator of the hospital at which protagonist Gregory House (Hugh Laurie) works as well as the Dean of Medicine.

“Castle” premiered on ABC in 2009 and stars Fillion as a mystery writer who, after being questioned by New York police after a murderer commits a crime that is similar to one of his books, begins to work with detective Beckett (Katic) to solve mysteries. He uses her as the inspiration for a protagonist for a new series of mystery novels.

The show has been nominated for four Primetime Emmy Awards, all for technical categories, such as Outstanding Music Composition.