Orphan Black (2013–2017)
2 user 13 critic

Endless Forms Most Beautiful 

Dr. Leekie offers deals to both Alison and Cosima. Sarah meets Rachel Duncan. Delphine tries to make amends. Alison tries to get her life back together. Helena escapes.


John Fawcett


John Fawcett (created by), Graeme Manson (created by) | 12 more credits »




Episode cast overview, first billed only:
Tatiana Maslany ... Sarah Manning / Alison Hendrix / Cosima Niehaus / Helena / Rachel Duncan
Dylan Bruce ... Paul Dierden
Jordan Gavaris ... Felix Dawkins
Kevin Hanchard ... Detective Art Bell
Michael Mando ... Vic
Maria Doyle Kennedy ... Siobhan Sadler
Matt Frewer ... Dr. Aldous Leekie
Skyler Wexler ... Kira Manning
Kristian Bruun ... Donnie Hendrix
Natalie Lisinska ... Aynsley Norris
Inga Cadranel ... Detective Angela DeAngelis
Ron Lea ... Lieutenant Gavin Hardcastle
Evelyne Brochu ... Delphine Cormier
Melanie Nicholls-King ... Amelia
Josh Vokey ... Scott


With the revelation about her special connection to Helena, Sarah wants to make sure Helena understands she is not the original. Sarah is soon arrested however as Art has finally figured out it was Beth who killed herself by jumping in front of the train. Dr. Leekie visits Alison and offers her a deal. He does the same with Cosima who has just arrived in town. Sarah meets another version of herself, Rachel Duncan, who offers to explain all if only she signs an agreement. The three orphans agree to do what is best for each of them individually. Alison just wants her life back and seizes an opportunity to take revenge on the person she thinks is her watcher. Cosima and Delphine mend fences but find something startling. Sarah returns home only to find something very wrong. Written by garykmcd

Plot Summary | Add Synopsis


Action | Drama | Sci-Fi


TV-MA | See all certifications »

Did You Know?


The foyer that Sarah's (Tatiana Maslany) lawyer walks her into to meet with Rachel Duncan is the same foyer for the offices of Pearson Specter Litt in the TV series Suits (2011). See more »


In this episode Cosima finds out that the clones are patented. This part of the plot has several errors at the same time. Even if it were possible to get a patent on human cloning (which is in fact NOT possible), a patent is granted for the maximum duration of 20 years. Moreover, a patent would never take away your human rights.... This twist in the last episode makes the whole story completely ridiculous. See more »


[first lines]
Sarah Manning: [Sarah prepares to introduce Amelia to Helena] Ready?
Amelia: Yes. I carried you both. I need to see her.
Mrs. S: I don't think that nine months of gestation entitles her to risk us all.
Sarah Manning: Hey, look, Helena's my twin sister. She has a right to know.
Mrs. S: Because you shared a womb? Helena. Is. Dangerous.
See more »


Blame Fiction
Written by John Raham and The Belle Game
Performed by The Belle Game
See more »

User Reviews

A thrilling and dramatic cliffhanging conclusion to Season One
1 December 2018 | by DVD_ConnoisseurSee all my reviews

"Endless Forms" is a satisfying plot-packed cliffhanger to wrap Season One.

The tone for this finale is a serious one. When Alison says farewell to Aynsley, it's no laughing matter.

There are shocks and surprises awaiting the viewer as characters confront their individual nemesis.

9 out of 10. An excellent first season.

3 of 4 people found this review helpful.  Was this review helpful to you? | Report this
Review this title | See all 2 user reviews »

Frequently Asked Questions

This FAQ is empty. Add the first question.






Release Date:

1 June 2013 (USA) See more »

Company Credits

Show more on IMDbPro »

Technical Specs



See full technical specs »

Contribute to This Page

Recently Viewed