Although Laurel Lance may be gone from “Arrow,” Katie Cassidy is not entirely gone from the Arrowverse just yet. Katie will be making an appearance in the May 17th episode of “The Flash” titled “Invincible.” She’ll be playing her Earth-2 counterpart Donna Nance a.k.a. Black Siren.
The CW has released a new synopsis for the episode and it reveals that Barry will come face to face with Black Siren when she brings an army of meta-humans from Earth-2 to Earth-1. You can check out the official synopsis below.
THE FLASH “Invincible” — (8:00-9:00 p.m. ET) (Content Rating TBD) (HDTV)
KATIE CASSIDY GUEST STARS AS BLACK SIREN – After Zoom (guest star Teddy Sears) unleashes an army of Earth-2 meta-humans on Central City, Barry (Grant Gustin) is shaken when he sees their leader is the Black Canary’s Earth-2 doppelganger, the Black Siren (guest star Katie Cassidy). Meanwhile, Wally (Keiynan Lonsdale) takes to the streets to help The Flash stop the meta-humans, which worries Joe (Jesse L. Martin). Iris (Candice Patton) and Henry (guest star John Wesley Shipp) are concerned about Barry taking on Zoom. Jesse Warn directed the episode with story by Greg Berlanti & Andrew Kreisberg and teleplay by Brooke Roberts & David Kob (#222). Original airdate 5/17/2016.
