BECKETT RACES AGAINST TIME TO PREVENT A CHEMICAL WEAPON FROM KILLING THOUSANDS OF PEOPLE, ON ABC'S "CASTLE"

Lisa Edelstein Guest Stars

"Dreamworld" - Continuing from the season premiere episode, Beckett races against time to find a stolen toxin capable of killing tens of thousands of people. To make matters worse, Castle was exposed, leaving him with less than 24 hours to live, on "Castle," MONDAY, SEPTEMBER 30 (10:01-11:00 p.m., ET) on the ABC Television Network.

"Castle" stars Nathan Fillion as Richard Castle, Stana Katic as NYPD Detective Kate Beckett, Susan Sullivan as Martha Rodgers, Molly Quinn as Alexis Castle, Penny Johnson Jerald as NYPD Captain Victoria Gates, Tamala Jones as Medical Examiner Lanie Parish, Jon Huertas as NYPD Detective Javier Esposito, and Seamus Dever as NYPD Detective Kevin Ryan.

Guest Cast: Lisa Edelstein as Rachel McCord, Yancy Arias as Carl Villante, Jocko Sims as Matt Hendricks, Myko Oliver as Pi, Michael Bofshever as Dr. Goldberg, Glenn Morshower as Secretary Michael Reed.

"Dreamworld" was written by David Grae and directed by Tom Wright.

"Castle" is produced by ABC Studios. Andrew Marlowe serves as executive producer/writer, along with executive producers Rob Bowman, David Amann, David Grae, and Armyan Bernstein.

"Castle" is broadcast in 720 Progressive (720P), ABC's selected HDTV format, with 5.1 channel surround sound. A TV parental guideline will be assigned closer to airdate.

For more information on "Castle," visit ABC.com