For the concept of the same name, see Doppelgänger.
"Laurel Lance. She died in this hospital."
"I pronounced her. There was an autopsy. Of course, I've seen my share of things I once would have considered miraculous. I mean, in a world where a man can run faster than light, I suppose anything's possible."
Dinah Drake and Elisa Schwartz
"Doppelganger" is the fifteenth episode of the sixth season of Arrow, and the one-hundred-thirtieth episode overall. It aired on March 8, 2018.


Oliver and Thea are shocked to hear that Roy Harper is back in Star City. However, when they discover the circumstances of Roy's return, Oliver and Thea realize that Roy is in trouble and jump in to save him. Black Siren makes a shocking decision.[src]


Main cast

Special Guest Star

Guest Starring





  • This is the first episode to feature Colton Haynes as Roy Harper in 2 years since "Unchained"​.
  • This is the first episode of the series to not feature Rick Gonzalez (Rene Ramirez) after being promoted to a series regular and the third absence overall since his first appearance.
  • The title refers to Black Siren pretending to be her Earth-1 counterpart.
  • Diaz refers to Thea dressing up like Will Scarlet, a character of English folklore. While a reference to Speedy's wearing red as opposed to Green Arrow's green, Will Scarlet is prominently known as the most skilled swordsman of the Merry Men, a nod to the fact that Speedy carries a sword.
  • Felicity makes mention of "huffing and puffing and blowing [...] firewalls down", referencing the infamous line from the fable The Three Little Pigs.
  • This episode features a couple nods to Green Arrow's New 52 vol 5 arc "Broken".
    • Diaz kidnaps and interrogates Roy. In the comics, Diaz interrogates John Diggle as part of his plan to humiliate him and Green Arrow and take back the city after the two ruined his father.
    • Kimberly Hill mentioned raising $30 million by selling the items that were seized from Cayden James by the SCPD. The $30 million in the comics was the bounty put on Green Arrow by Diaz.
  • The building Team Arrow attacks with the "casino" sign on top is actually the old train depot located in downtown Detroit.
  • The abandoned casino Diaz is operating out of is the Edgewater Casino in Vancouver, which had in fact shut down operations a few months earlier. The roof shots earlier where Thea tires to save Roy from the police are the same location.


  • Oliver claims Green Arrow told him that Laurel was Black Canary. However in "Canary Cry", Oliver announced at her funeral that Laurel told him her secret identity herself before dying.


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