Michelle Harrison Cast as Nora Allen in The Flash Series

Harrison joins a cast that also includes Candice Patton as Iris West, Jesse L. Martin as Iris's father, Detective West, Rick Gosnett as Central City Police Detective Eddie Thawne, Carlos Valdes as Cisco Ramon, Danielle Panabaker as S.T.A.R. Labs bioengineer Caitlin Snow, Tom Cavanagh as S.T.A.R. Labs CEO Harrison Wells, and John Wesley Shipp, from the original "The Flash" TV series, in an unspecified role.

"The Flash" arrives from co-creators Greg Berlanti and Andrew Kreisberg who, along with Geoff Johns, will write the pilot episode with "Arrow" pilot director David Nutter at the helm.

(Photo Credit: Christopher Mason / WENN)