Katie Cassidy to Return to 'Arrow' as a Series Regular -- Black Siren Is Here to Stay in Season 6!

The CW

Laurel Lance is officially moving back to Star City!

Katie Cassidy will return to Arrow as a series regular for the sixth season of the CW superhero drama, ET can reveal.

Warner Bros announced on Monday that Cassidy, who was killed off in Arrow's fourth season, is set to appear as the Black Siren for episodes #522 and #523 and will then continue in the same role next year.

EXCLUSIVE: 'Arrow' Boss Talks Laurel's Return: 'We Always Have a Twist!'

"One of the things that most excites us about Arrow is that we go where the story takes us," Arrow executive producer Marc Guggenheim said in a statement. "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," the showrunner continued. "We couldn’t be more thrilled to welcome Katie back to Arrow as Black Siren, though as her appearances on Arrow and DC’s Legends of Tomorrow this season show, she never really left the family."

Arrow airs Wednesdays at 8 p.m. ET/PT on The CW