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NCIS: Sydney S3E20 — Killer
8.1
NCIS: Sydney•Season 3•Episode 20

Killer

8.1/10 · 167 votesMay 12, 202643 min

Ranked #6 of 20 in Season 3•+0.3 vs season avg

Discussion

The team faces the battle of their lives to stop The Collective and save those they hold dear.

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Killer

Cast7

Olivia Swann

Olivia Swann

Michelle Mackey

Todd Lasance

Todd Lasance

Jim 'JD' Dempsey

Sean Sagar

Sean Sagar

DeShawn Jackson

Tuuli Narkle

Tuuli Narkle

Evie Cooper

Mavournee Hazel

Mavournee Hazel

Bluebird 'Blue' Gleeson

William McInnes

William McInnes

Dr. Roy Penrose

Claude Jabbour

Claude Jabbour

Travis 'Trigger' Riggs

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Episode Summary

"Killer" is episode 20 of NCIS: Sydney season 3. It scored 8.1/10 from 167 votes, ranking #6 of 20 episodes this season (season average 7.8). It aired on May 12, 2026.

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