Gemini is a villain in Teen Titans and the daughter of Madame Rouge.
After her mother's passing, she joined the Brotherhood and sweared vengeance on the Titans. Gemini shares the same powers as her mother especially shapeshifting.
Her first mission with them was an arms deal with the Penguin in Blüdhaven, but they were defeated by Batgirl. Since that time, Gemini had rejoined with The Brain and Monsieur Mallah as a member of the new Brotherhood of Evil to battle against Teen Titans.