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FBI S8E22 — Defector

8.0

FBI•Season 8•Episode 22

Defector

8.0/10 · 303 votesMay 18, 202643 min

Ranked #6 of 22 in Season 8•+0.3 vs season avg

The theft of a bioweapon from an unwitting defector forces the team to work with an old foe to secure the lethal pathogen and prevent an outbreak across New York City.

Directed byAlex Chapple

Written byAaron Ginsburg, Ryan Maldonado, Eduardo Javier Canto

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Seasons9

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Cast6

Missy Peregrym

Missy Peregrym

Maggie Bell

Zeeko Zaki

Zeeko Zaki

Omar Adom 'OA' Zidan

John Boyd

John Boyd

Stuart Scola

Jeremy Sisto

Jeremy Sisto

Jubal Valentine

Alana de la Garza

Alana de la Garza

Isobel Castille

Juliana Aidén Martinez

Juliana Aidén Martinez

Eva Ramos

Crew4

Alex Chapple

Alex Chapple

Director

Aaron Ginsburg

Aaron Ginsburg

Writer

R

Ryan Maldonado

Writer

E

Eduardo Javier Canto

Writer

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Episode Summary

"Defector" is episode 22 of FBI season 8. It scored 8.0/10 from 303 votes, ranking #6 of 22 episodes this season (season average 7.7). Directed by Alex Chapple and written by Aaron Ginsburg, Ryan Maldonado, Eduardo Javier Canto, it aired on May 18, 2026.

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