Katie Cassidy’s character, Laurel Lance, was killed of in the later episodes of Arrow’s season 4. Cassidy has since appeared on the show in flashbacks and as her Earth-2 doppelgänger. But now the producers have decided to bring her back as a series regular.
Her Earth-2 version, the Black Siren, will appear in the final two episodes of season 5, and she will continue on as series regular in season 6.
Arrow’s executive producer, Mark Cuggenheim said:
“One of the things that most excites us about Arrow is that we go where the story takes us. Last year, the story took us to the tragic death of Laurel Lance. This year, our midseason finale reintroduced us to Laurel’s doppelgänger, Black Siren. We were so taken by Katie’s fearless interpretation of this character that we knew her story was not yet finished. We couldn’t be more thrilled to welcome Katie back to Arrow as Black Siren, though as her appearances on and this season show, she never really left the family.”
Laurel had been regular on the show since the start of season one, and now Earth-2 Laurel is back for good.