Stephanie Corneliussen, who plays Joanna Wellick on Mr. Robot, has been cast as Valentina Vostock in the CW’s Legends of Tomorrow, according to TV Line.  Vostock is a Soviet physicist encountered by the Legends at the height of the Cold War. 

In the comics, Vostock had a number of alter egos including Negative Woman and White Queen.    

Legends of Tomorrow is already well under way, with Hawkgirl and Hawman’s costumes recently revealed (see “Hawkgirl and Hawkman’s Costumes Revealed”), and the first trailer out (see “First ‘DC’s Legends of Tomorrow’ Trailer”).