Laurel Lance (Earth-X)

Dinah Laurel Lance (alias Siren-X) is the last member of the New Reich in Earth-X. She is the daughter of New Reich high official, Quentin Lance.

She's portrayed by Katie Cassidy, who also portrayed her heroic counterpart and her less evil Earth Two counterpart.

Biography
She was born within the New Reich within the Lance family. She was in love with The Führer. Though because he was married to another woman, it was an unrequited love. Sometime later, visitors from Earth One and Earth Thirty-Eight allied with the Freedom Fighters and killed the leadership of the New Reich, leaving the ruling government of Earth-X to topple. For revenge, she went to Earth One to destroy it. However, Flash and his team, that are indigenous to Earth One, along with Leo Snart, from her world, prevented her from avenging the fallen Earth-X regime.