Gray Goo
7.4

Gray Goo
Silo Season 3

Knox's father Gus comes clean about a secret. Charlotte makes a life-changing decision.

8 / 10

Episode

3 / 4

Season

7.4

Rating

61

Votes

2026

Year

Guest stars 11

Clare Perkins

Carla McLain

Harriet Walter

Martha Walker

Steve Zahn

Solo

Avi Nash

Lukas Kyle

Rick Gomez

Patrick Kennedy

Chipo Chung

Sandy

Georgina Sadler

Audrey

Orlando Norman

Rick

Jessica Henwick

Helen

Chris Fulton

Mike

Sara Hazemi

Hope

Crew 2

Jenny DeArmitt-Stran

Writer

Justin Li

Editor