NATHAN FILLION, SEAMUS DEVER, JON HUERTAS Photo

From: Photo Flash: CASTLE's 'Target'

On CASTLE's upcoming episode, titled 'Target,' in the first of a two-episode story arc, Castle & Beckett begin a murder investigation that also exposes a plot to kidnap the daughter of a wealthy Middle Eastern businessman. Dylan Walsh ('Nip/Tuck') guest stars as FBI Agent Harris, an even-keeled professional brought in to help find the kidnappers, on MONDAY, FEBRUARY 18 (10:01-11:00 p.m., ET) on ABC.