After the successful launch of Arrow and the even more successful spinoff series The Flash, The CW has proven that they're capable of supporting an ever-expanding DC Television Universe. Fans can look forward to a lighter season of Arrow and the exploration of the multiverse in the second season of The Flash, both of which promise to add new characters to their shared universe.
With the animated series Vixen currently airing on CW Seed and spinoff series DC's Legends of Tomorrow slated for 2016, the character roster in the shared universe is growing at an impressive rate. Though the trinity (Batman, Superman and Wonder Woman) are absent from the shows, most of DC's famous heroes and villains are being adapted on The CW.
The Wrap reports that Stephanie Corneliussen (Mr. Robot) has joined Legends of Tomorrow as Valentina Vostok. Vostok is a Russian scientist during the Cold War, suspected of aiding series villain Vandal Savage (Casper Crump). The character will be featured in a multi-episode arc, during which Ray Palmer (Brandon Routh) and Captain Cold (Wentworth Miller) will be trying to earn her affections and determine where her true loyalties lie.
Valetina Vostok was created by Paul Kupperberg and Jim Aparo and first appeared in Showcase #94 in 1977. In the book she is a high ranking pilot in the Soviet Air Force who steals a plane and attempts to defect to America. However, her escape fails and she ends up crashing the plane.
Vostok is a significant character in large part due to her connections to the Doom Patrol, a superhero team made up of heroes who are alienated by their powers. Her plane crashes on the same site where the original Doom Patrol perished and she is fused with a negative energy being that originally inhabited Doom Patrol member Negative Man. Granted the same radioactive powers as the deceased hero, she adopted the moniker Negative Woman and joined the newest incarnation of the Doom Patrol.
Legends of Tomorrow is adopting a new plot structure, one that will allow for the miniseries to tell a self-contained story. Once the heroes stop Vandal Savage, presumably they will go their separate ways until a new threat appears on the scene. CW President Mark Pedowitz has stated that there will be no new DC spinoffs at this time. However, The CW has an opportunity to use Legends as something of an anthology series, focusing on parts of the DC Universe that wouldn't necessarily mesh with The Flash or Arrow.
In other words: introducing Vostok on Legends of Tomorrow (and, in turn, the CW/DC-verse) now could serve a springboard for a new story centered on the Doom Patrol, in a future installment.
The Flash season two begins Tuesday, October 6th, at 8PM on The CW; Arrow season four begins Wednesday, October 7th, at 8PM on The CW; and DC’s Legends of Tomorrow is expected to debut in early 2016 on The CW.
Source: The Wrap