** EPISODE CHANGE **

CASTLE BECOMES A HOSTAGE FOR A KILLER LINKED TO THE MURDER OF BECKETT'S MOTHER, ON ABC'S "CASTLE"

"Sucker Punch" - While investigating the death of an Irish mobster, Beckett and Castle uncover a local turf war that may be connected to both a late-night infomercial guru and an international drug smuggling operation. But the case turns agonizingly personal when evidence emerges that the killer they're chasing may have had a hand in Beckett's mother's murder, on "Castle," SATURDAY, APRIL 10 (10:00-11:00 p.m., ET) on ABC. (Rebroadcast: OAD 1/18/10)

Note: This episode replaces "Hedge Fund Homeboys."

"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: Jay R. Ferguson as Dick Coonan, James Cosmo as Finn Rourke and Scott Paulin as Jim Beckett.

"Sucker Punch" was written by Will Beall and directed by Tom Wright.

"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. This program carries a TV-PG,L,V parental guideline.

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