Helix Wiki
Episode Information
Season 2
Episode 5
Air Date February 13, 2015
Viewers .44 million[1]
Writer Leigh Dana Jackson
Director Grant Harvey
Episode Cast
Previous Densho
Next M. Domestica
List of Episodes

"Oubliette" is the fifth episode of Season 2 of Helix. It originally aired on February 13th, 2015 (10:00PM EST) on Syfy in the US, and on Showcase in Canada.


Determined to get answers from his brother, Peter reveals to Brother Michael that "Jerome" is actually Alan. Michael responds by imprisoning the both of them in an oubliette. Sarah is nursed back to health by Sister Agnes, who discovers her immortality.

Episode Overview[]


To be Added


  • Kyle is shown to be a spy of some sort.
  • The back of the katana is shown - inscribed with そ, な, ち, and き in triplets:
    • そそな ちきち きなな きちそ なきち そちそ きそち きそち ちきそ きそち そそな きちき

Cast and Crew[]

Helix Episode Cast

2.5 - "Oubliette"


Billy Campbell as Alan Farragut
Kyra Zagorsky as Julia Walker
Matt Long as Kyle Sommer
Mark Ghanimé as Sergio Balleseros*

Guest Starring

Jordan Hayes as Sarah Jordan
Neil Napier as Peter Farragut
Jim Thorburn as Caleb
Alison Louder as Sister Amy
Severn Thompson as Sister Anne
Sean tucker as Landry
Clare Coulter as Sister Agnes
Steven Weber as Brother Michael


Lynne Adams as Deputy Director
Sabrina Campilii as Female Follower
Raphael Grosz-Harvey as Orchard Follower
Steven Park as Stunt Follower
Ken C Tran as Stunt Orchard Follower #1
François Gauthier as Stunt Orchard Follower #2
Craig Snoyer as Stunt Orchard Follower #3

* Characters who are credited but did not actually appear in the episode.
** Characters who appeared in the episode, but were not credited.

Production Notes[]

To be Added


Season 2
Episodes "San Jose" • "Reunion" • "Scion" • "Densho" • "Oubliette" • "M. Domestica" • "Cross Pollination" •
"Vade in Pace" • "Ectogenesis" • "Mother" • "Plan B" • "The Ascendant" • "O Brave New World"
Primary Characters Alan FarragutJulia WalkerPeter FarragutSarah JordanKyle SommerSergio Balleseros
Secondary Characters Brother MichaelSister AmySister AnneSister AgnesLandryCaleb
Lt. Commander WingerHiroshi HatakeDaniel AerovLeila Weisner
Season 1 • Season 2