【電視台】Space (加拿大)、BBC America (美國)
主角莎拉·曼寧（Sarah Manning）在火車站目擊一名和自己長相神似的女子伊麗莎白·柴爾斯（Elizabeth Childs）跳軌自殺，決定盜取對方身份，接著被捲入一場更大的陰謀裡。本作引起複製人（clone）在道德和倫理上的爭議性，以及此議題對於個人自我認知的影響。
Last to know she is a clone, the born outsider is a natural chameleon who’s able to adapt to any new situation she faces.
Meet Beth – Sarah’s entry point into the mystery.
Alison is a most unusual suburban wife.
Cosima is the cosmic geek who helps her clone sisters make sense of the science behind their existence.
Sarah’s identical twin estranged at birth and raised by nuns in an oppressive and harsh Ukrainian convent, is feral, aggressive and quick to anger.
M.K., the newly discovered clone that lives off the grid, is hiding from Neolution.
Rachel was the first female clone raised self-aware of her origin.
Felix Dawkins is Sarah’s younger foster brother and most trusted confidante.
Mrs. S is Sarah and Felix’s adoptive mother who brought them to North America in the late ’90s.
Donnie Hendrix continues to serve as monitor for his wife, Alison (unbeknownst to her).
Art Bell is a veteran detective and former partner to the late Beth Childs, who’s become unwittingly enfolded in the clone conspiracy.
Kira is an anomaly in the clone world, born of the should-be sterile Sarah Manning.
Scott is Cosima’s lab partner.
Delphine is a French expat and brilliant Dyad doctor and scientist, who first appeared as Cosima’s monitor.
Susan Duncan is a prominent scientist involved in Neolution’s clandestine cloning projects.
Ira is a male clone from the Castor project who is a far cry from his brothers.
Ferdinand is a powerful player in the secretive, multi-national cabal known as Topside.
Kendall is Mrs. S’ estranged mother and the genetic original for both the female and male clone experiments.
Shameless, brazen, and spontaneous, Adele is a wickedly intelligent lawyer that outwits even when heavily intoxicated — and that’s often.
Evie is Neolution’s new corporate face selling their vision to the public.
Edgy, tattooed, an air of self-reliance that lends to a distinctive sex appeal, Dizzy is a hacker that doesn’t conform to group mentality.
Detective Duko is responsible for giving Neolution cover from the police.
Extremely pale with a playful yet sinister vibe, Frank and his girlfriend Roxie work for Evie Cho as her cleanup crew.
Recruited from her daytime jobs as an EMT, she’s responsible for retrieving Neolution’s new technological device and making sure those dissenting are silenced.