Castle/What Lies Beneath

What Lies Beneath
Season 8, Episode 4
Airdate	October 12, 2015
Written by	Barry O'Brien
Directed by	Larry Shaw
Stream
← 8x03 PhDead	8x05 → The Nose
Castle — Season Eight

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What Lies Beneath is the fourth episode of the eighth season of Castle, and the one hundred fifty-fifth episode overall.

Starring: Nathan Fillion (Richard Castle), Stana Katic (Detective Kate Beckett), Susan Sullivan (Martha Rodgers), Jon Huertas (Detective Javier Esposito), Seamus Dever (Detective Kevin Ryan), Tamala Jones (M.E. Lanie Parish), Molly C. Quinn (Alexis Castle), Toks Olagundoye (Hayley Shipton (credit only))

Guest Starring: Tony Plana (Father Arguello), Ryan Devlin (Stephen Reed), Casey Sander (Billy O'Rourke), Lise Simms (Wendy Johnson), Blake Shields (Eric Logan), Jerry O'Donnell (Milton Cicero)

Co-Starring: Jf Davis (Dave Johnson), Herbert Russell (Bob), Eric Satterber (Carl), David Weisenberg (Lawyer)

Uncredited: Aubrey Plaza (Lucy (voice))