'Chuck' scores a '10' with Bo Derek casting

This "Chuck" casting news is brought to you by the number 10.

Bo Derek, best known for her role in "10," has signed on as a guest star for the show's final season, according to The Hollywood Reporter. Derek is perhaps best known for being the title character and object of Dudley Moore's lust in the movie "10." And she's set to appear in episode 10 of "Chuck."

Derek will play herself in the episode, and the HR says she'll have a romantic connection with one of the show's characters. Casey (Adam Baldwin) seems like the most obvious choice to us, assuming that connection is one from the past, but that's just a guess on our part; the show is keeping quiet on the specifics of her role.

The part will be Derek's first TV series role in a few years; she last appeared in the MyNetwork TV soap "Fashion House" in the 2006-07 season. She also co-starred in the Lifetime movie "The Hunt for the I-5 Killer," which premiered earlier this month.

She joins a growing list of high-profile female guest stars on "Chuck's" last season, including Carrie-Anne Moss, Rebecca Romijn and Cheryl Ladd, who will play Sarah's (Yvonne Strahovski) mother.