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The Strain S4E9 — The Traitor

7.8

The Strain•Season 4•Episode 9

The Traitor

7.8/10 · 948 votesSep 10, 201744 min

Ranked #6 of 10 in Season 4•−0.1 vs season avg

An unexpected guest brings old conflicts to the surface, dividing the heroes and threatening the group's trust; with questionable new intelligence in hand, the group launches a make-or-break final assault on the Master.

Directed byJennifer Lynch

Previous episodeE8 · Extraction Next episodeE10 · The Last Stand

Seasons4

Season 4 Episodes10

The Worm Turns still

The Worm Turns

The Blood Tax still

The Blood Tax

One Shot still

One Shot

New Horizons still

New Horizons

Belly of the Beast still

Belly of the Beast

Tainted Love still

Tainted Love

Ouroboros still

Ouroboros

Extraction still

Extraction

The Traitor still

E9 7.8Now viewing

The Traitor

The Last Stand still

The Last Stand

Cast9

Corey Stoll

Corey Stoll

Ephraim Goodweather

Kevin Durand

Kevin Durand

Vasiliy Fet

Miguel Gómez

Miguel Gómez

Gus Elizalde

David Bradley

David Bradley

Abraham Setrakian

Jonathan Hyde

Jonathan Hyde

Eldritch Palmer

Richard Sammel

Richard Sammel

Thomas Eichorst

Max Charles

Max Charles

Zach Goodweather

Ruta Gedmintas

Ruta Gedmintas

Dutch Velders

Rupert Penry-Jones

Rupert Penry-Jones

Mr. Quinlan

Crew1

Jennifer Lynch

Jennifer Lynch

Director

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Episode Summary

"The Traitor" is episode 9 of The Strain season 4. It scored 7.8/10 from 948 votes, ranking #6 of 10 episodes this season (season average 7.9). Directed by Jennifer Lynch, it aired on September 10, 2017.

Next: E10 · The Last Stand Best of Season 4