Lie to Me stud Brendan Hines is headed to Castle this April to wreak a little havoc on the show’s beloved “Will They/Won’t They?” twosome.
Hines is stopping by the ABC hit as a rookie mystery writer who finds a mentor in veteran Richard Castle, per TV Guide. However, once at the precinct, his character takes a liking to the lovely Beckett — much to her partner’s dismay.