SEASON PREMIERE

NATHAN FILLION AND STANA KATIC RETURN FOR SEASON TWO OF "CASTLE," PREMIERING MONDAY, SEPTEMBER 21 ON ABC

Authors Stephen J. Cannell and Michael Connelly Guest Star

"Deep in Death" -- When the new season begins, Castle (Nathan Fillion) is wrestling with how to repair his relationship with Beckett (Stana Katic), while struggling to finish his soon-to-be-published bestseller, Heat Wave. But circumstances force the pair back together to investigate the mysterious murder of a man found dead, tangled in the limbs of a tree. The Season Two premiere of "Castle" airs MONDAY, SEPTEMBER 21 (10:01-11:00 p.m. ET) on ABC. Authors Stephen J. Cannell and Michael Connelly guest star as themselves in the episode.

"Castle" stars Nathan Fillion as Richard Castle, Stana Katic as NYPD Detective Kate Beckett, Susan Sullivan as Martha Rodgers, Molly Quinn as Alexis Castle, Ruben Santiago-Hudson as NYPD Captain Roy Montgomery, Tamala Jones as Medical Examiner Lanie Parish, Jon Huertas as NYPD Detective Javier Esposito and Seamus Dever as NYPD Detective Kevin Ryan.

Guest Cast: Stephen J. Cannell as himself, Michael Connelly as himself, Laurel Holloman as Sandy Allen, Elizabeth Ho as Amy Saunders, Robert Grant as Ron Bigby.

"Deep in Death" was written by Andrew Marlowe and directed by Rob Bowman.

"Castle" is produced by ABC Studios. Andrew Marlowe serves as executive producer/writer, along with executive producers Rob Bowman, Rene Echevarria, Laurie Zaks and Armyan Bernstein.

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

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