According to exclusively to TVLine, Stephanie Corneliussen of Mr.Robot has been cast as Valentina Vostok in DC’s Legends of Tomorrow, for multiple episodes in its first season.
The character of Valentina Vostok is described as followed:
A gifted and beautiful Soviet physicist who will stop at nothing to defend her precious “Motherland.” When the Legends encounter her at the height of the Cold War, they suspect her of working with Vandal Savage (Casper Crump) on a secret weapon. Ray/The Atom (Brandon Routh) and Leonard/Captain Cold (Wentworth Miller) must vie for Valentina’s affection in an attempt to thaw her cold heart, and find out where her allegiance truly lies -— before she completes her project and potentially turns the tide of the Cold War.
Valentina Vostok in the DC Comics Universe under the name of Negative Woman, became a member of Doom Patrol for several years, then later became the White Queen, taking over Checkmate, replacing Amanda Waller.
As someone who binge watched Mr.Robot, Corneliussen is stellar casting for DC’s Legends of Tomorrow, as she was by far one of the best additions to the USA Network television series.