Valentina was a member of the second Doom Patrol team and worked for the original incarnation of Checkmate eventually becoming the White Queen. She apparently died during the Final Crisis.
Valentina Vostok
Valentina was a member of the second Doom Patrol team and worked for the original incarnation of Checkmate eventually becoming the White Queen. She apparently died during the Final Crisis.
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Original Publisher
DC Comics
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Aliases
Lt. Col. Vostok , Negative Woman, Valentina Vostock, Valentina Vostok, White Queen
All data from the awesome folks at Marvel.