Castle/Undead Again

Undead Again
Season 4, Episode 22
Airdate	April 30, 2012
Written by	Christine Boylan
Directed by	Bill Roe
Stream
← 4x21 Headhunters	4x23 → Always
Castle — Season Four

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Undead Again is the twenty-second episode of the fourth season of Castle, and the eightieth 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) (credit only), Molly Quinn (Alexis Castle), Penny Johnson Jerald (Captain Victoria Gates) (credit only)

Guest Starring: Arye Gross (M.E. Sidney Perlmutter), Ryan Doom (Tom Williams), Tiffany Dupont (Greta Mastroianni), Josh Braaten (Kyle Jennings), Brandon Keener (Charlie Coleman), Kevin Symons (Mike Matthews)

Co-Starring: Kevin Sheridan (Paul), Maxwell Glick (Rhett), Ross Kurt Le (Aleem), Amaris Davidson (Jen)