FBI/Behavior

Behavior
Season 8, Episode 18
Airdate	April 20, 2026
Production Number	818
Written by	Ryan Maldonado & Eduardo Javier Canto
Directed by	Alex Chapple
← 8x17 Shahadah	8x19 → Fidelity
FBI — Season Eight

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Behavior is the eighteenth episode of the eighth season of FBI, and the one hundred fifty-third episode overall.

Missy Peregrym (Special Agent Maggie Bell), Zeeko Zaki (Special Agent Omar Adom "OA" Zidan) (credit only), John Boyd (Special Agent Stuart Scola), Juliana Aidén Martinez (Special Agent Eva Ramos)

with Alana De La Garza (Special Agent in Charge Isobel Castile)

and Jeremy Sisto (Assistant Special Agent in Charge Jubal Valentine)

Guest Stars: Chris Coy (Abel Shaw), Taylor Anthony Miller (FBI Analyst Kelly Moran), Vedette Lim (FBI Analyst Elise Taylor), Thomas Philip O'Neill (Dr. Neil Mosbach), Erika Olson (Erica Shaw), Adam Johnson (Reggie Kramer)

and Zach Grenier (Peter Olsen)

with Lance Olds (Clyde Bream), Tracy Wilder (Sally), Jess Lucatorto (Valerie Palmer), Jimmy Paxton (Troy Palmer), Sarah Pribis (Audrey Cahill), Jack Walters (Bryce Cahill)