CASTLE GOES BACK TO SCHOOL, ON ABC'S "CASTLE"

"PhDead" - When the body of a local college fraternity student is found gruesomely murdered, Castle has to go undercover as a professor in order to gain access to the victim's world. However, he and Beckett soon discover that behind the fun and games of college are some darker secrets the university wants to keep hidden. "PhDead" will air on MONDAY, OCTOBER 5 (10:01-11:00 p.m. ET/PT) on the ABC Television Network.

"Castle" stars Nathan Fillion as Richard Castle, Stana Katic as NYPD Detective Kate Beckett, Tamala Jones as Medical Examiner Lanie Parish, Jon Huertas as NYPD Detective Javier Esposito, Seamus Dever as NYPD Detective Kevin Ryan, Molly Quinn as Alexis Castle with Susan Sullivan as Martha Rodgers. For Season 8, Toks Olagundoye ("The Neighbors") has joined the series as Hayley.

Guest cast: Sunkrish Bala as Vikram Singh, Geoff Pierson as Michael Smith, Christine Adams as Dr. Barbara Lillstrom, Kelly Rowan as Dean Carla Feller.

"PhDead" was written by Chad Creasey and directed by Rob Bowman.

"Castle" is produced by ABC Studios. Executive producers are Terence Paul Winter, Alexi Hawley, Rob Bowman, Rob Hanning and Armyan Bernstein.

"Castle" is broadcast in 720 Progressive (720P), ABC's selected HDTV format, with 5.1 channel surround sound. This program carries a TV-PG,D,L,S,V parental guideline.

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