While we still have many months left untilDC’s Legends of Tomorrowdebuts this spring on The CW, the cast continues to fill out.TV Linereports thatMr. RobotactressStephanie Corneliussenhas signed on to play theDC Comicscharacter Valentina Vostok, a.k.a. Negative Woman. While it isn’t known exactly when she will make her debut on the superhero series, the actress will have a multi-episode arc.

Valentina Vostok was created by Paul Kupperberg andJim Aparo, debuting in Showcase #94 which hit the shelves in August 1977. In the comics, Valentina was a Russian Air Force pilot who stole an experimental Russian plane so she could defect to the United States. During her flight, the plane malfunctioned and she crash landed in the same spot that the Doom Patrol had died, causing her to be fused with the energy of Negative Man, turning her into Negative Woman. It isn’t known if this same back story will be used onDC’s Legends of Tomorrow.

The character is described as a, “gifted and beautiful Soviet physicist” who will do whatever it takes to defend her home country. The Legends first meet her at the height of theCold War, suspecting her of working withVandal Savage(Casper Crump) on a secret weapon. Atom (Brandon Routh) and Captain Cold (Wentworth Miller) go on a mission to win over her affections before she can complete this project, that could have a devastating impact on the Cold War.

DC’s Legends of Tomorrowalso starsArthur Darvillas Rip Hunter,Franz Dramehas Jay Jackson,Victor Garberas Dr. Martin Stein,Caity Lotzas White Canary,Dominic Purcellas Heat Wave andFalk Hentschelas Hawkman. Both White Canary and Hawkman will appear in episodes of bothArrowandThe Flashin the first halves of their respective seasons, before starring inDC’s Legends of Tomorrow. It isn’t clear how many other DC characters will be announced before the series debuts.

Stephanie Corneliussenportrayed Joanna Wellick, a fan-favorite character in the first season of USA Network’s breakout hit seriesMr. Robot. She has also had guest-starring turns on The Exes, Bad Judge andRoyal Pains. Are you looking forward to seeing Victoria Vostok on action onDC’s Legends of Tomorrownext spring? The CW hasn’t announced exactly when the series will debut yet, so stay tuned for more details.